PedraGems
Seam Agate Coffin Cabochon 31x18mm 30ct – Natural Gemstone
$7.50
Unit price per
Seam Agate Coffin Cabochon 31x18mm 30ct – Natural Gemstone
$7.50
Unit price perEstimated delivery between June 08 and June 10.
Low in stock
Pay with
Your transaction is protected with advanced security measures to keep your information confidential
Embrace the darker side of natural beauty with our Natural Seam Agate Coffin Shape Cabochon — a bold and striking 31x18x5mm gemstone weighing 30 carats, cut into the iconic coffin silhouette beloved by gothic, witchy, and alternative jewellery makers worldwide.
The coffin shape, also known as a casket cut, features a rectangular body that tapers to a pointed base — a silhouette that is both dramatic and deeply symbolic. Paired with the rich natural banding of Seam Agate, this cabochon is a statement piece that stands apart from anything ordinary.
✦ Stone Specifications:
• Shape: Coffin (Casket)
• Dimensions: 31x18x5 mm
• Weight: 30 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:
• Gothic & witchy pendant jewellery
• Halloween & dark aesthetic jewellery
• Wire wrapping & bezel settings
• Statement coffin ring centrepiece
• Alternative & occult jewellery designs
• Crystal healing & protection work
• Collectors of unusual gemstone shapes
✦ Size Reference:
Not sure how big this stone is? At 31x18mm it is slightly larger than a US quarter dollar in length — a bold, generous size with real presence on the neckline or finger.
✦ Why Coffin Shape?
The coffin or casket cabochon is one of the most sought-after alternative shapes in the gemstone world. Its angular lines contrast beautifully with the organic, flowing bands of natural agate — creating a piece that feels both raw and refined at once.
At 30 carats with a 5mm dome, this is a substantial stone with impressive depth and excellent light play across its polished surface.
✦ About Seam Agate:
Seam Agate is a natural chalcedony formed within rock seams and fissures, producing its characteristic richly layered banding patterns. Each stone is entirely unique in colour, flow, and character — no two cabochons are ever the same.
In crystal healing traditions, Agate is associated with protection, grounding, and inner strength — qualities that align naturally with the bold symbolism of the coffin shape.
Order today and receive this hand-selected natural gemstone — fully polished, flat-backed, and ready to become the dark heart of your next creation.
Gemstone Details
-
Material
Australias Variscite
-
Weight
178 Grams total, divided into cabs and stones
-
Shapes
Shaped into cabochons of varied sizes such as oval, pear, freeform etc.
-
Finish
Smooth and polished surface that aids as a finish
-
Uses
Pendants Rings Earrings Necklace and on Custom Jewelry Designs as well.
Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.
Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.
Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.
$7.50
Unit price per
FAQs
Use this text to answer questions in as much detail as possible for your customers.
Use this text to answer questions in as much detail as possible for your customers.
Yes, we offer customization services for our gemstones and cabochons. You can choose the type of gemstone, shape, size, and other specifications to create a unique piece.
Use this text to answer questions in as much detail as possible for your customers.
Use this text to answer questions in as much detail as possible for your customers.
Use this text to answer questions in as much detail as possible for your customers.
Use this text to answer questions in as much detail as possible for your customers.
Have a Question? Let’s Connect.
We’re here to help — whether you’re a jeweler sourcing in bulk, a reseller with specific requirements, or a collector looking for something special.
Pedra Gems is a trusted gemstone manufacturer offering high-quality, handcrafted stones at wholesale prices. From custom cuts to bulk lots, we supply jewelers and resellers worldwide with fast shipping and personal service.
Pedra Gems is a trusted gemstone manufacturer offering high-quality, handcrafted stones at wholesale prices. From custom cuts to bulk lots, we supply jewelers and resellers worldwide with fast shipping and personal service.