Cabochon

Experience the beauty of nature's own geometry with our Natural Seam Agate Freeform Rounded Corner Triangle Cabochon — a captivating 31x15x5mm gemstone weighing 18 carats, shaped into an elongated triangular silhouette where every corner flows into a soft, organic curve rather than a sharp point.

This stone occupies a wonderful creative space between geometric and organic. Its three-sided triangular form gives it strong directional energy and visual structure — but the rounded corners soften every angle into a gentle, flowing curve that feels warm, natural, and deeply wearable. It is a triangle that has been touched by nature.

✦ Stone Specifications:
• Shape: Freeform (Rounded Corner Triangle)
• Dimensions: 31 x 15 x 5 mm
• Weight: 18 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.
• Shape note: Freeform stones are unique by nature — the exact curvature of the corners, banding pattern, and silhouette of this stone are individual to this piece and will not be replicated in any other.

✦ Perfect For:
• Long drop pendant & statement necklace designs
• Wire wrapping — rounded corners wrap smoothly with no sharp pressure points
• Boho & nature-inspired jewellery collections
• Electroforming & copper wrap projects
• Focal stone for macramé & fibre art
• Modern geometric jewellery with an organic twist
• Crystal healing & energy work
• Collectors of rare organic geometric shapes

✦ Why This Rounded Corner Triangle?
The 31x15mm proportions give this stone a dramatically elongated triangular form — nearly 2.2:1 length-to-width ratio — making it one of your most slender and directional triangle shapes. Wide across the top with a gently tapering base, it creates a strong sense of downward movement ideal for long drop pendants that draw the eye elegantly down the neckline.

The key distinction from your sharp-cornered triangles is the rounded corners. Where sharp corners create angular, geometric tension, rounded corners soften that energy — creating a shape that feels simultaneously structured and organic. This makes the stone more versatile across jewellery styles, equally at home in a boho wire-wrapped pendant and a modern minimalist setting.

The rounded corners are also a practical advantage for wire wrappers. Unlike sharp-cornered triangles that require tight corner wraps, the gentle curves allow wire to flow continuously and smoothly around the entire perimeter — producing naturally graceful, fluid wrapping lines with no awkward angles to navigate.

At 30mm long this is one of your longest triangle-family stones — a bold, dramatic drop pendant stone with serious visual presence. The 5mm dome adds excellent depth and rich light play, making the natural Seam Agate banding glow beautifully across the elongated face.

✦ 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.

The flowing organic banding of Seam Agate pairs beautifully with the softly rounded triangular form — both sharing the same language of gentle curves and natural movement.

Celebrated for its grounding and stabilising energy, Seam Agate is beloved by crystal practitioners and artisan jewellers worldwide.

Order today and receive this exact hand-selected gemstone — its rounded corners, elongated silhouette, and natural banding are entirely one of a kind and will never be repeated.

Celebrate the beauty of natural gemstones with our Natural Seam Agate Heart Shape Cabochon — a beautifully balanced 18x20x5mm stone weighing 14.5 carats, cut into a classic, full heart silhouette that is as timeless as it is striking.

At 18x20mm, this heart cabochon is almost perfectly proportioned in width and height, producing a full, rounded heart shape with exceptional visual balance. Neither too wide nor too tall, it is the kind of heart cut that jewellery makers return to again and again for its versatility and universal appeal.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 18x20x5 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:
• Classic heart pendant & necklace designs
• Valentine's Day & anniversary jewellery
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Crystal healing & heart chakra work
• Meaningful gifts for gemstone lovers
• Bridal & romantic jewellery making

✦ Why This Heart Shape?
The near-equal 18x20mm proportions of this cabochon produce one of the most classically balanced heart shapes available. Many heart stones are either too wide and flat or too tall and narrow — this stone hits the ideal proportions that give a heart its most recognisable, satisfying silhouette.

The 5mm dome adds generous depth and excellent light play across the polished surface, giving the stone a rich, full presence whether set in a pendant or ring. At 14.5 carats it carries real weight and visual substance without being oversized.

✦ 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 popular choice for heart chakra work — promoting love, balance, and emotional stability.

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

Introduce a touch of natural elegance to your jewellery collection with our Natural Seam Agate Heart Shape Cabochon — a beautifully cut 19x19x5mm gemstone weighing 12.5 carats.

This perfectly symmetrical heart cabochon is crafted from genuine Seam Agate, showcasing the stone's signature earthy banding in a romantic shape that's ideal for meaningful, handcrafted jewellery pieces.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 19 x 19 x 5 mm
• Weight: 12.5 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:
• Heart pendant & necklace designs
• Valentine's Day & anniversary jewellery
• Wire wrapping & bezel settings
• Statement ring centrepiece
• Crystal healing & heart chakra work
• Thoughtful gift for gemstone lovers

✦ Why This Stone Stands Out:
At 19x19mm, this heart cabochon is a generous and perfectly proportioned size — large enough to make a bold statement, yet refined enough for everyday wear. The 5mm dome height gives the stone a satisfying depth and excellent light play across its polished surface.

✦ About Seam Agate:
Seam Agate is a natural chalcedony formed in the seams and cavities of host rock, giving each stone its one-of-a-kind banding pattern. No two pieces are identical in colour, flow, or character — making every cabochon a truly unique treasure.

Associated with grounding, calm, and inner strength, Seam Agate is a beloved choice among crystal healers and jewellery artists alike.

A heartfelt stone in every sense — order today and receive a hand-selected, naturally beautiful gemstone ready to be transformed into something extraordinary.

Express natural beauty and heartfelt elegance with our Natural Seam Agate Heart Shape Cabochon from Pedra Gems — a beautifully proportioned 19x21x5mm gemstone weighing 15 carats, cut into a deep, upright heart silhouette that radiates warmth, romance and natural character.

At 19x21mm this heart is 2mm 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: 19 x 21 x 5 mm
• Weight: 15 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 19x21mm 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 15 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 19×21mm stone is a classic mid-size upright heart — larger and more substantial than our small hearts (13×14mm, 15×16mm) yet more intimate and wearable than our large statement hearts (24×25mm, 26×29mm).

✦ 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.

Celebrate the beauty of natural gemstones with our Natural Seam Agate Heart Shape Cabochon — a beautifully balanced 20x19x5mm stone weighing 14 carats, cut into a classic, full heart silhouette that is as timeless as it is striking.

At 20x19mm, this heart cabochon is almost perfectly proportioned in width and height, producing a full, rounded heart shape with exceptional visual balance. Neither too wide nor too tall, it is the kind of heart cut that jewellery makers return to again and again for its versatility and universal appeal.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 20 x 19 x 5 mm
• Weight: 14 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
• Valentine's Day & anniversary jewellery
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Crystal healing & heart chakra work
• Meaningful gifts for gemstone lovers
• Bridal & romantic jewellery making

✦ Why This Heart Shape?
The near-equal 20x19mm proportions of this cabochon produce one of the most classically balanced heart shapes available. Many heart stones are either too wide and flat or too tall and narrow — this stone hits the ideal proportions that give a heart its most recognisable, satisfying silhouette.

The 5mm dome adds generous depth and excellent light play across the polished surface, giving the stone a rich, full presence whether set in a pendant or ring. At 14 carats it carries real weight and visual substance without being oversized.

✦ 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 popular choice for heart chakra work — promoting love, balance, and emotional stability.

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

Celebrate the beauty of natural gemstones with our Natural Seam Agate Heart Shape Cabochon — a beautifully balanced 20x21x5mm stone weighing 16 carats, cut into a classic, full heart silhouette that is as timeless as it is striking.

At 20x21x5mm, this heart cabochon is almost perfectly proportioned in width and height, producing a full, rounded heart shape with exceptional visual balance. Neither too wide nor too tall, it is the kind of heart cut that jewellery makers return to again and again for its versatility and universal appeal.

✦ Stone Specifications:
• Shape: Heart
• Dimensions: 20x21x5 mm
• Weight: 16 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
• Valentine's Day & anniversary jewellery
• Wire wrapping & heart bezel settings
• Statement heart ring centrepiece
• Crystal healing & heart chakra work
• Meaningful gifts for gemstone lovers
• Bridal & romantic jewellery making

✦ Why This Heart Shape?
The near-equal 20x21x6 mm proportions of this cabochon produce one of the most classically balanced heart shapes available. Many heart stones are either too wide and flat or too tall and narrow — this stone hits the ideal proportions that give a heart its most recognisable, satisfying silhouette.

The 5mm dome adds generous depth and excellent light play across the polished surface, giving the stone a rich, full presence whether set in a pendant or ring. At 16 carats it carries real weight and visual substance without being oversized.

✦ 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 popular choice for heart chakra work — promoting love, balance, and emotional stability.

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

Express natural beauty and heartfelt elegance with our Natural Seam Agate Heart Shape Cabochon from Pedra Gems — a beautifully proportioned 21x20x5 mm gemstone weighing 18.5carats, cut into a deep, upright heart silhouette that radiates warmth, romance and natural character.

At 21x20mm 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: 21x20x5 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:
• 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 21x20mm 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 18.5 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 21x20mm stone is a classic mid-size upright heart — larger and more substantial than our small hearts (21x20mm) yet more intimate and wearable than our large statement hearts (21x20)

✦ 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 a heartfelt natural treasure from Pedra Gems — our Natural Seam Agate Heart Shape Cabochon, a beautifully proportioned 21x24x4mm gemstone weighing 14.5 carats, cut into a full, upright heart silhouette that radiates warmth, balance and natural beauty.

At 21x24mm 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: 21 x 24 x 4 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 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 21x24mm 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 14.5 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.

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.