Seam Agate Triangle Cabochon 24x13mm 8.5ct – Natural Gemstone

Create bold, directional designs with our Natural Seam Agate Triangular Cabochon — a striking 24x13x4mm gemstone weighing 8.5 carats, cut into an elongated triangular silhouette with a sharp, confident point that commands attention in any jewellery setting.

Unlike compact equilateral triangles, this stone has a pronounced length-to-width ratio of nearly 2:1 — wide across the top with a strong tapered point below, creating a dynamic, directional form that draws the eye downward with natural authority. It is a triangle with movement, tension, and geometric drama.

✦ Stone Specifications:
• Shape: Triangular (Elongated)
• Dimensions: 24 x 13 x 4 mm
• Weight: 8.5 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:
• Drop pendant & directional necklace designs
• Wire wrapping — tapered point provides strong anchor
• Modern & geometric jewellery collections
• Art deco & architectural jewellery styles
• Statement ring with angular setting
• Gothic & alternative jewellery designs
• Crystal healing & energy work
• Collectors of bold geometric gemstone shapes

✦ Why This Elongated Triangle?
The 24x13mm proportions set this stone apart from both smaller compact triangles and larger equilateral cuts. Its near 2:1 length-to-width ratio produces a sharply tapered silhouette — broad and confident at the top, narrowing decisively to a strong point below.

This elongated form creates a natural sense of downward movement and direction — making it particularly powerful as a drop pendant where the point hangs below and draws the eye. In ring settings, the elongated triangle visually lengthens the finger in the same way a marquise does, adding elegance and drama.

The pointed tip is a practical advantage for wire wrappers — the sharp lower apex provides a strong, natural anchor point, while the wider flat top edge offers ample surface for decorative wrapping work.

At 8.5 carats with a 4mm dome, this stone has solid substance without being heavy — a comfortable weight for pendant wear while still carrying real visual presence.

✦ 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 contrast between the organic, flowing natural agate banding and the sharp, angular elongated triangle silhouette creates a uniquely compelling visual tension — earthy and geometric, natural and bold, all in one stone.

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

Order today and receive a hand-selected natural gemstone — fully polished, flat-backed, and ready to bring sharp geometric energy to your next creation.