From the ancient earth to your hands, this one-of-a-kind Dinosaur Gembone cabochon is a showstopper. Measuring 57mm x 40mm, it features extraordinary “agatozagoon”—where the fossilized cellular structure of dinosaur bone has been naturally replaced by colorful agate over millions of years.

Cut specifically for a bold bolo tie or large statement piece, this cabochon glows with earthy reds, deep browns, and semi-translucent pockets that light up under the right angle. Collected from the famed fossil beds of the Four Corners region in the American Southwest, this is the kind of material that’s getting harder and harder to find in this size and quality.

Every cell tells a story of time, pressure, and transformation—an ancient relic turned wearable art, ready for a custom setting or a place in a serious collection.

Origin: Four Corners region, USA

Dimensions: 57mm x 40mm

Finish: High-polish dome, ready for setting

Ships safely packaged and insured. Custom setting options available—just ask.