Agate

Discover a heartfelt natural treasure from Pedra Gems — our Natural Seam Agate Heart Shape Cabochon, a beautifully proportioned 23x24x5mm gemstone weighing 20 carats, cut into a full, upright heart silhouette that radiates warmth, balance and natural beauty.

At 23x24mm this heart is almost perfectly square in its proportions — just 1mm taller than wide — producing one of the fullest, most satisfying heart silhouettes in our collection. The lobes are deep and rounded at the top, flowing down to a strong, decisive central point that gives the heart its most classic and universally recognised form.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 23 x 24 x 5 mm
• Weight: 20 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Statement heart pendant & necklace designs
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Valentine's Day & anniversary jewellery
• Crystal healing & heart chakra work
• Meaningful gift for gemstone lovers
• Bridal & romantic jewellery making
• Bespoke commission jewellery centrepiece

✦ Why This Heart?
The near-square 23x24mm proportions place this stone in the sweet spot of the Pedra Gems heart collection — larger and more substantial than our mid-size hearts (19×19mm, 20×19mm) yet more intimate and refined than our larger statement pieces (24×25mm, 26×29mm).

At 20 carats this is a confident, premium-weight stone. Heavy enough to feel truly special in the hand and meaningful as a gift, yet perfectly proportioned for comfortable everyday pendant wear. The 5mm dome adds excellent depth and rich natural light play across the polished surface.

The slightly taller-than-wide proportion — just 1mm of difference — gives this heart its beautifully upright, full character. The lobes curve generously at the top, the sides taper naturally inward, and the central point drops cleanly below — the heart silhouette at its most complete and satisfying.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon from Pedra Gems is a completely unique piece of natural art.

In crystal healing traditions, the heart shape combined with Agate's grounding energy makes this a powerful stone for heart chakra work — promoting love, compassion, emotional balance and inner strength.

Order today from Pedra Gems and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the heartfelt centrepiece of your next beautiful creation.

Make a bold statement with our Large Natural Seam Agate Heart Shape Cabochon — a striking 24x23x5mm gemstone weighing 22.5 carats, designed for jewellery makers who love to create pieces that truly stand out.

This oversized heart cabochon is one of our largest cuts, offering an impressive canvas of natural Seam Agate banding. Its generous proportions make it a showstopping centrepiece for pendants, statement rings, and bespoke wire-wrapped designs.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 24 x 23 x 5 mm
• Weight: 22.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Large pendant & statement necklace designs
• Bold wire wrapping & oversized bezel settings
• Statement cocktail ring centrepiece
• Valentine's Day & anniversary gifts
• Crystal healing & heart chakra work
• Luxury gift for gemstone collectors

✦ Why This Stone Stands Out:
At 24x23mm and 22.5 carats, this is a large, impressive heart cabochon that commands attention. The slightly wider-than-tall proportion gives it a natural, organic heart silhouette — full and expressive. The 5mm dome adds beautiful depth and a rich tactile quality that smaller stones simply cannot match.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within the seams and fissures of host rock, producing its distinctive flowing, layered banding. Each stone carries its own unique pattern of colour and line — no two are ever alike.

Celebrated for its grounding and calming energy, Seam Agate is a favourite among crystal practitioners and artisan jewellers alike. Its earthy tones complement both silver and gold settings beautifully.

A truly one-of-a-kind natural gemstone — order today and receive a hand-selected piece ready to become the heart of your next creation.

Express natural beauty and heartfelt elegance with our Natural Seam Agate Heart Shape Cabochon — a beautifully proportioned 24x25x5mm gemstone weighing 23 carats, cut into a classic upright heart silhouette that combines generous size with timeless romantic form.

At 24x25mm, this heart is slightly taller than it is wide — a proportion that produces one of the most recognisable and classic heart silhouettes in jewellery. The deeper-than-wide form gives the lobes a full, rounded curvature at the top and draws down to a strong, decisive central point — a heart shape that reads clearly, boldly, and beautifully from every distance.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 24 x 25 x 5 mm
• Weight: 23 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic statement pendant & necklace designs
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Valentine's Day & anniversary jewellery
• Crystal healing & heart chakra work
• Meaningful gift for gemstone lovers
• Bridal & romantic jewellery making

✦ Why This Heart?
The 24x25mm proportions of this cabochon sit in a sweet spot — large enough to make a genuine statement as a pendant centrepiece, yet perfectly shaped for settings that require a classic, upright heart silhouette.

The taller-than-wide proportion is key. Hearts that are wider than tall can look flat or splayed — hearts that are taller than wide, like this one, have a deep, full-bodied curvature and a strong downward point that gives the silhouette its most recognisable and satisfying form. This is the heart shape that most people picture when they close their eyes and imagine a heart.

At 23 carats this is a substantial mid-to-large stone — heavy enough to feel premium and meaningful in the hand, wearable enough for everyday pendants and occasional statement pieces alike.

The 5mm dome adds excellent depth and rich light play across the polished surface — a full, rounded dome that catches light beautifully and gives the stone a warm, glowing presence.

✦ Your Heart Range at a Glance:
With 8 heart listings now in your collection, here is how this stone fits:
Small hearts: 13×14mm (6ct) and 15×16mm (6.5ct) — earrings & dainty pendants
Mid hearts: 19×19mm (12.5ct), 20×19mm (14ct), 20×20mm — classic pendant sizes
Large hearts: 24×25mm (23ct), 24×23mm (22.5ct), 26×17mm (18ct)
XL heart: 26×29mm (35ct) — showpiece collector stone

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

In crystal healing traditions, the heart shape combined with Agate's grounding energy makes this a powerful choice for heart chakra work — promoting love, compassion, and emotional balance.

Order today and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the heartfelt centrepiece of your next beautiful creation.

Make a truly bold statement with our Natural Seam Agate Heart Shape Cabochon — a striking 26x17x6mm gemstone weighing 18 carats, featuring a wide, expressive heart silhouette and the deepest dome in our heart collection at 6mm.

This is a heart cabochon with real presence. The wider-than-tall proportions of 26x17mm produce a broad, open heart silhouette — full, expressive, and immediately recognisable from a distance. Combined with an impressive 6mm dome that rises generously above the surface, this stone has exceptional visual depth, rich light play, and a tactile quality that smaller, flatter stones simply cannot match.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 26 x 17 x 6 mm
• Weight: 18 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, deep domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Bold statement pendant & necklace designs
• Wire wrapping & oversized heart bezel settings
• Statement heart ring centrepiece
• Valentine's Day & anniversary jewellery
• Crystal healing & heart chakra work
• Luxury gift for gemstone collectors
• Bridal & special occasion jewellery making

✦ Why This Heart Stands Out:
At 26x17mm, this is one of the widest heart cabochons in our collection. The broader-than-tall proportion gives the heart a full, expressive, open silhouette — not the narrow, elongated heart of some cuts, but a wide, classic heart that reads boldly and clearly.

The 6mm dome is the defining feature that elevates this stone above all others. This is the deepest dome across our entire heart range — creating a generous, rounded profile with exceptional light play across the polished surface. From every angle this stone catches light and draws the eye.

At 18 carats this is a substantial, high-quality stone with real weight. Experienced collectors and jewellers will immediately recognise the premium natural material and deep dome as marks of a genuinely superior cabochon.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

In crystal healing traditions, the heart shape combined with Agate's grounding energy makes this a powerful choice for heart chakra work — promoting love, compassion, and emotional strength.

Order today and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the bold, heartfelt centrepiece of your next statement creation.

Express natural beauty and heartfelt elegance with our Natural Seam Agate Heart Shape Cabochon from Pedra Gems — a beautifully proportioned 29x27x5 mm gemstone weighing 27.5carats, cut into a deep, upright heart silhouette that radiates warmth, romance and natural character.

At 29x27mm this heart is 5mm taller than wide — a proportion that produces one of the most naturally satisfying and recognisable heart silhouettes in the Pedra Gems collection. The lobes are full and rounded at the top, flowing gracefully downward to a strong, decisive central point that gives the heart its most classic and timeless form.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 29x27x5 mm
• Weight: 27.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic heart pendant & necklace designs
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Valentine's Day & anniversary jewellery
• Crystal healing & heart chakra work
• Meaningful romantic gift for gemstone lovers
• Bridal & occasion jewellery making
• Everyday wearable heart pendant

✦ Why This Heart?
The 29x27mm proportions give this heart a naturally upright, deep character — the extra 2mm of height over width creates full, generous lobes at the top and a confident downward point that is deeply satisfying in both pendant and ring settings.

At 27.5 carats this stone sits in the ideal mid-size range — substantial enough to feel genuinely meaningful and premium as a gift or pendant centrepiece, yet light and compact enough for comfortable everyday wear. It is the sweet spot between the dainty small hearts and the bold large statement pieces in the Pedra Gems collection.

The 5mm dome adds excellent depth and warm light play across the polished natural agate surface — a classic dome height that gives this heart beautiful visual presence from every angle.

✦ Your Pedra Gems Heart Collection:
With over 10 heart listings, Pedra Gems offers one of the most comprehensive natural agate heart ranges available. This 29x27mm stone is a classic mid-size upright heart — larger and more substantial than our small hearts (29x27mm) yet more intimate and wearable than our large statement hearts (29x27)

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones from Pedra Gems share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

In crystal healing traditions, the heart shape combined with Agate's grounding energy makes this a powerful stone for heart chakra work — promoting love, compassion, emotional balance and inner strength.

Order today from Pedra Gems and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the heartfelt centrepiece of your next beautiful creation.

Discover the natural beauty of our Seam Agate Heart Shape Cabochon — a stunning gemstone prized for its distinctive banded patterns and smooth, polished surface.

Each piece is a unique creation of nature, featuring the signature earthy tones and flowing lines that make Seam Agate one of the most sought-after stones for artisan jewelry makers.

• ✦ Perfect For:
  • Pendant & necklace making
  • Wire wrapping projects
  • Ring & earring settings
  • Crystal healing & chakra work
  • Resin art & craft projects

✦ Stone Details:
• Shape: Heart                                                                                                                          • Size & Weight: 24x25x5 mm & 24.5ct
• Cut: Cabochon (flat back, domed top)
• Stone Type: Natural Seam Agate
• Finish: Smooth, high-polish
• Back: Flat, ready to set

✦ Why Choose Natural Seam Agate?
Seam Agate is a variety of chalcedony formed in the seams and cavities of host rock. Each cabochon carries one-of-a-kind banding patterns — no two stones are exactly alike. Known for its grounding energy and earthy aesthetic, it is a favorite among jewelry designers and crystal enthusiasts alike.

Whether you are a professional jeweler or a passionate hobbyist, our Seam Agate Heart Cabochon delivers both beauty and quality to elevate your creations.

Bring timeless elegance to your jewellery designs with our Natural Seam Agate Marquise Cabochon — a beautifully elongated 25x10mm gemstone weighing 4.5 carats, cut into the distinctive marquise silhouette beloved by fine jewellery makers and artisan designers alike.

The marquise shape — also known as the navette or "little boat" cut — features an elongated elliptical body tapering to a sharp point at both ends. This iconic double-pointed silhouette is one of the most refined and dramatic shapes in gemstone jewellery, prized for its ability to elongate the finger, lengthen the neckline, and add a sense of movement and grace to any setting.

✦ Stone Specifications:
• Shape: Marquise (Navette)
• Dimensions: 25x10x2 mm
• Weight: 4.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Statement pendant & drop necklace designs
• Marquise ring centrepiece settings
• Wire wrapping — both pointed ends provide natural anchor points
• Art deco & vintage-inspired jewellery
• Elongated bezel & navette setting designs
• Crystal healing & energy work
• Collectors of elegant gemstone shapes

✦ Why Marquise Shape?
The marquise is one of the most flattering shapes in all of jewellery making. Its 26x11mm proportions produce a length-to-width ratio of nearly 2.4:1 — a dramatic, elongated form that creates a strong visual line in any design.

When set as a ring stone, the marquise shape visually elongates the finger — a well-known effect that has made it a perennial favourite in engagement and statement ring design. As a pendant, the double-pointed form creates natural movement and a dynamic, directional energy that oval and round stones simply cannot match.

The two pointed tips are a practical advantage for wire wrappers — each tip provides a natural anchor point for wrapping, creating a symmetrical, balanced design with structural integrity at both ends.

At 25x10 alternative jewellery stone. 4.5 carats and 2mm dome, this is a substantial and visually commanding stone — full of rich natural Seam Agate banding across its generous surface area.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones pair beautifully with sterling silver, gold-filled, and copper wire settings.

Order today and receive this hand-selected natural gemstone — fully polished, flat-backed, and ready to become the elegant centrepiece of your next marquise creation.

Bring timeless elegance to your jewellery designs with our Natural Seam Agate Marquise Cabochon — a beautifully elongated 26x11x5mm gemstone weighing 14.5 carats, cut into the distinctive marquise silhouette beloved by fine jewellery makers and artisan designers alike.

The marquise shape — also known as the navette or "little boat" cut — features an elongated elliptical body tapering to a sharp point at both ends. This iconic double-pointed silhouette is one of the most refined and dramatic shapes in gemstone jewellery, prized for its ability to elongate the finger, lengthen the neckline, and add a sense of movement and grace to any setting.

✦ Stone Specifications:
• Shape: Marquise (Navette)
• Dimensions: 26 x 11 x 5 mm
• Weight: 14.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Statement pendant & drop necklace designs
• Marquise ring centrepiece settings
• Wire wrapping — both pointed ends provide natural anchor points
• Art deco & vintage-inspired jewellery
• Elongated bezel & navette setting designs
• Crystal healing & energy work
• Collectors of elegant gemstone shapes

✦ Why Marquise Shape?
The marquise is one of the most flattering shapes in all of jewellery making. Its 26x11mm proportions produce a length-to-width ratio of nearly 2.4:1 — a dramatic, elongated form that creates a strong visual line in any design.

When set as a ring stone, the marquise shape visually elongates the finger — a well-known effect that has made it a perennial favourite in engagement and statement ring design. As a pendant, the double-pointed form creates natural movement and a dynamic, directional energy that oval and round stones simply cannot match.

The two pointed tips are a practical advantage for wire wrappers — each tip provides a natural anchor point for wrapping, creating a symmetrical, balanced design with structural integrity at both ends.

At 14.5 carats and 5mm dome, this is a substantial and visually commanding stone — full of rich natural Seam Agate banding across its generous surface area.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones pair beautifully with sterling silver, gold-filled, and copper wire settings.

Order today and receive this hand-selected natural gemstone — fully polished, flat-backed, and ready to become the elegant centrepiece of your next marquise creation.

Bring timeless elegance to your jewellery designs with our Natural Seam Agate Marquise Cabochon — a beautifully elongated 38x12x5mm gemstone weighing 18.5 carats, cut into the distinctive marquise silhouette beloved by fine jewellery makers and artisan designers alike.

The marquise shape — also known as the navette or "little boat" cut — features an elongated elliptical body tapering to a sharp point at both ends. This iconic double-pointed silhouette is one of the most refined and dramatic shapes in gemstone jewellery, prized for its ability to elongate the finger, lengthen the neckline, and add a sense of movement and grace to any setting.

✦ Stone Specifications:
• Shape: Marquise (Navette)
• Dimensions: 38 x 12x 5 mm
• Weight: 18.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Statement pendant & drop necklace designs
• Marquise ring centrepiece settings
• Wire wrapping — both pointed ends provide natural anchor points
• Art deco & vintage-inspired jewellery
• Elongated bezel & navette setting designs
• Crystal healing & energy work
• Collectors of elegant gemstone shapes

✦ Why Marquise Shape?
The marquise is one of the most flattering shapes in all of jewellery making. Its 26x11mm proportions produce a length-to-width ratio of nearly 2.4:1 — a dramatic, elongated form that creates a strong visual line in any design.

When set as a ring stone, the marquise shape visually elongates the finger — a well-known effect that has made it a perennial favourite in engagement and statement ring design. As a pendant, the double-pointed form creates natural movement and a dynamic, directional energy that oval and round stones simply cannot match.

The two pointed tips are a practical advantage for wire wrappers — each tip provides a natural anchor point for wrapping, creating a symmetrical, balanced design with structural integrity at both ends.

At 18alternative jewellery stone.5 carats and 5mm dome, this is a substantial and visually commanding stone — full of rich natural Seam Agate banding across its generous surface area.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones pair beautifully with sterling silver, gold-filled, and copper wire settings.

Order today and receive this hand-selected natural gemstone — fully polished, flat-backed, and ready to become the elegant centrepiece of your next marquise creation.

Introducing our Natural Seam Agate Oval Cabochon — a beautifully crafted 21x15x5mm gemstone weighing 14.5 carats, perfect for artisan jewelry makers and crystal collectors.

This generously sized oval cabochon showcases the natural layered banding that makes Seam Agate a timeless choice in handcrafted jewelry. With a smooth domed top and flat back, it is ready to set straight from the box.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 21 x 15 x 5 mm
• Weight: 14.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface

✦ Perfect For:
• Pendant & necklace settings
• Wire wrapping & bezel settings
• Statement ring & bracelet designs
• Crystal healing & chakra balancing
• Resin casting & mixed media art

✦ Why Seam Agate?
Seam Agate is a natural chalcedony variety formed within rock seams and fissures, resulting in its characteristic flowing banded patterns. Each stone is entirely unique — no two cabochons share the same pattern, colour, or character.

At 14.5 carats and 21x15mm, this oval cabochon is an ideal size for a bold pendant centrepiece or a statement ring. Its 5mm dome height gives excellent light reflection and a satisfying tactile quality.

A grounding stone associated with strength and stability, Seam Agate is as meaningful as it is beautiful — loved by both jewelers and healing crystal enthusiasts worldwide.

Order today and receive a one-of-a-kind natural gemstone, carefully selected for quality and visual appeal.

Discover generous natural beauty from Pedra Gems — our Natural Seam Agate Oval Cabochon, a beautifully rounded 25x18x5mm gemstone weighing 20 carats, cut into a wide, full-bodied oval silhouette that showcases the rich natural banding of Seam Agate across an exceptional face area.

At 25x18mm this oval has a near 1.4:1 length-to-width ratio — one of the widest and most rounded oval proportions in the Pedra Gems collection. This generous width creates a stone with maximum face area, displaying the natural banding of the Seam Agate in all its layered glory. Not an elongated oval, not a narrow stone — this is a full, confident, beautifully rounded gem.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 25 x 18 x 5 mm
• Weight: 20 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic oval pendant & statement necklace designs
• Oval bezel ring settings — wide ovals make exceptional ring centrepieces
• Wire wrapping & bezel settings
• Bridal & occasion jewellery making
• Boho & artisan jewellery collections
• Everyday wearable statement pendant
• Crystal healing & grounding energy work

✦ Why This Wide Oval?
The 25x18mm proportions give this stone a wide, rounded form that sits between a classic oval and a near-circle in character — full, generous, and visually rich. That generous width means more natural agate banding is visible across the face of the stone than any of our narrower oval cuts.

For ring settings, a wider oval like this is particularly flattering — the broad face elongates and widens the appearance of the finger beautifully, creating a statement ring that draws attention from across a room. For pendant settings, the wide face creates a rich, substantial centrepiece that wears confidently on the neckline.

The 5mm dome adds excellent depth and warm light play across the polished surface — a classic dome height that gives this stone beautiful visual presence from every angle without being so high as to look bulky.

At 20 carats this is a premium stone with genuine substance. The weight combined with the wide face makes this one of the most satisfying and impressive natural cabochons in the Pedra Gems oval range — a stone that jewellers and collectors will immediately appreciate as exceptional quality.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones from Pedra Gems share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones complement sterling silver, gold-filled, and copper wire settings beautifully.

Order today from Pedra Gems and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the generous, beautiful centrepiece of your next jewellery creation.

Discover timeless natural elegance with our Natural Seam Agate Oval Cabochon — a beautifully proportioned 28x18x4mm gemstone weighing 17 carats, combining classic oval form with a sleek low-profile dome that makes it one of the most versatile and wearable stones in our collection.

At 28x18mm this oval has a near 1.6:1 length-to-width ratio — widely regarded among jewellers as one of the most flattering and universally appealing oval proportions available. Not too elongated, not too wide, this stone sits in the sweet spot that works beautifully in every setting style from classic fine jewellery to boho wire wrapping.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 28 x 18 x 4 mm
• Weight: 17 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, low dome)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic oval pendant & necklace designs
• Oval bezel ring settings
• Wire wrapping & bezel settings
• Everyday wearable pendant designs
• Flush & low-profile bezel settings
• Bridal & occasion jewellery making
• Boho & minimalist jewellery styles
• Crystal healing & grounding energy work

✦ Why This Oval?
Two features make this stone stand out — its classic proportions and its low 4mm dome.

The 28x18mm proportions produce a near 1.6:1 ratio — the golden ratio of oval cabochons. This proportion is the most universally flattering for oval stones because it creates a shape that reads clearly as an oval without looking elongated or stubby. It suits standard oval bezel settings, ring mounts, and pendant blanks that buyers already have in their collection.

The 4mm dome is lower than most cabochons of this size, which carries three practical advantages. For everyday pendant wear, a lower dome sits closer to the skin and catches on clothing less. For bezel settings, lower dome walls are needed making setting easier and the finished piece sleeker. For wire wrapping, wire travels more smoothly and evenly across a flatter surface producing cleaner wrapping lines.

At 17 carats this is a well-weighted stone — substantial enough to feel premium as a pendant centrepiece while remaining perfectly comfortable for daily wear. A reliable, beautiful, endlessly versatile natural gemstone.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones complement sterling silver, gold-filled, and copper wire settings beautifully.

Order today and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the elegant centrepiece of your next jewellery creation.

Discover timeless natural beauty on a generous scale with our Natural Seam Agate Oval Cabochon from Pedra Gems — a beautifully proportioned 29x19x5mm gemstone weighing 25 carats, combining classic oval form with premium weight and a rich natural Seam Agate character that makes every piece of jewellery made from it uniquely special.

At 29x19mm this oval has a near 1.5:1 length-to-width ratio — one of the most universally flattering and classic oval proportions in jewellery making. This golden oval ratio produces a shape that reads clearly and beautifully as an oval, fitting the widest range of standard oval settings while remaining visually rich and generously sized.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 29 x 19 x 5 mm
• Weight: 25 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic statement oval pendant & necklace designs
• Oval bezel ring settings — a commanding ring centrepiece
• Wire wrapping & bezel settings
• Bridal & occasion jewellery making
• Boho & artisan jewellery collections
• Everyday statement pendant
• Crystal healing & grounding energy work

✦ Why This Oval?
The 29x19mm proportions place this stone firmly in the large oval category — noticeably bigger than our standard mid-size ovals yet beautifully proportioned for both pendant and ring settings. At 29mm long it creates excellent visual length on the neckline as a pendant, while the 19mm width ensures the stone has generous face area displaying the full natural banding of the Seam Agate.

The near 1.5:1 ratio is widely regarded as the sweet spot for oval cabochons — long enough to read as distinctly oval rather than round, wide enough to feel rich and substantial rather than narrow. This is the oval proportion that suits the most buyer preferences and fits the widest range of standard settings.

At 25 carats this is a premium stone with genuine weight. Heavier than our 20ct ovals and lighter than our large collector pieces, this stone sits in the ideal range for buyers who want a genuinely substantial natural gemstone for a statement jewellery piece without moving into showpiece territory.

The 5mm dome adds excellent depth and warm light play across the polished natural agate surface — a classic dome height that gives this oval beautiful visual presence and a satisfying tactile quality in the hand.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones from Pedra Gems share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones complement sterling silver, gold-filled, and copper wire settings beautifully.

Order today from Pedra Gems and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the classic, beautiful centrepiece of your next jewellery creation.

Discover timeless natural elegance with our Natural Seam Agate Oval Cabochon — a beautifully proportioned 29x20x6mm gemstone weighing 30.5 carats, combining classic oval form with a sleek low-profile dome that makes it one of the most versatile and wearable stones in our collection.

At 29x20x6 mm this oval has a near 1.6:1 length-to-width ratio — widely regarded among jewellers as one of the most flattering and universally appealing oval proportions available. Not too elongated, not too wide, this stone sits in the sweet spot that works beautifully in every setting style from classic fine jewellery to boho wire wrapping.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 29x20x6 mm
• Weight: 30.5 Carats
• Stone Type: Natural Seam Agate
• Cut: Cabochon (flat back, low dome)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Classic oval pendant & necklace designs
• Oval bezel ring settings
• Wire wrapping & bezel settings
• Everyday wearable pendant designs
• Flush & low-profile bezel settings
• Bridal & occasion jewellery making
• Boho & minimalist jewellery styles
• Crystal healing & grounding energy work

✦ Why This Oval?
Two features make this stone stand out — its classic proportions and its low 4mm dome.

The 29x20mm proportions produce a near 1.6:1 ratio — the golden ratio of oval cabochons. This proportion is the most universally flattering for oval stones because it creates a shape that reads clearly as an oval without looking elongated or stubby. It suits standard oval bezel settings, ring mounts, and pendant blanks that buyers already have in their collection.

The 4mm dome is lower than most cabochons of this size, which carries three practical advantages. For everyday pendant wear, a lower dome sits closer to the skin and catches on clothing less. For bezel settings, lower dome walls are needed making setting easier and the finished piece sleeker. For wire wrapping, wire travels more smoothly and evenly across a flatter surface producing cleaner wrapping lines.

At 30.5 carats this is a well-weighted stone — substantial enough to feel premium as a pendant centrepiece while remaining perfectly comfortable for daily wear. A reliable, beautiful, endlessly versatile natural gemstone.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding in warm, earthy tones. No two stones share the same pattern, colour, or flow — every cabochon is a completely unique piece of natural art.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide. Its warm earthy tones complement sterling silver, gold-filled, and copper wire settings beautifully.

Order today and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to become the elegant centrepiece of your next jewellery creation.

Add a burst of natural colour to your jewellery collection with this stunning Natural Seam Agate Oval Cabochon — a large 30x22x6mm gemstone weighing 32.5 carats, featuring a striking combination of red, yellow, and white natural banding.

This bold, multicolour cabochon is one of nature's most vibrant expressions of Seam Agate. The fiery interplay of warm red, sunny yellow, and crisp white layers creates a dramatic visual energy that makes this stone an instant centrepiece in any jewellery design.

✦ Stone Specifications:
• Shape: Oval
• Dimensions: 30 x 22 x 6 mm
• Weight: 32.5 Carats
• Stone Type: Natural Seam Agate
• Colour: Red, Yellow & White natural banding
• Cut: Cabochon (flat back, domed top)
• Finish: High-polish, smooth surface
• Please note: As these are natural gemstones, size and weight may vary slightly. Dimensions may differ by ±0.5mm and weight by ±0.5ct from the listed measurements.

✦ Perfect For:
• Large statement pendant & necklace designs
• Wire wrapping & oversized bezel settings
• Bold cocktail ring centrepiece
• Boho & tribal jewellery styles
• Crystal healing & solar plexus chakra work
• Collectors of vivid, multicolour gemstones

✦ Why This Stone Stands Out:
At 30x22mm and 32.5 carats, this is a large, commanding oval cabochon with exceptional visual impact. The 6mm dome — deeper than most standard cabochons — gives the stone a rich, full profile that catches light beautifully from every angle.

The combination of red, yellow, and white is particularly rare and striking in Seam Agate. Red tones in agate are created by iron oxide inclusions, giving each stone its warm, fiery character. The contrast against white and golden yellow bands creates a natural composition that no designer could replicate.

✦ Colour & Energy:
In crystal healing traditions, the red and yellow tones of this agate are associated with the root and solar plexus chakras — bringing energy, confidence, and vitality. White banding adds a balancing clarity to the stone's energetic profile.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing richly layered banding patterns unique to every stone. No two pieces are ever alike in colour, flow, or character.

A truly eye-catching gemstone — order today and receive this hand-selected, fully polished natural stone, ready to become the bold centrepiece of your next creation.