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Description

"Gem" Dinosaur Bone Cabochon Set of 10 - 186.57 TCW
Jurassic
Morrison Formation
Utah, USA

A striking set of ten cabochons cut from agatized Dinosaur Bone, exhibiting a vivid palette of reds, ochres, blues, and grays-colors created by trace minerals replacing the original bone structure over millions of years. The intricate cellular patterns characteristic of fossilized bone are visible in each cabochon, producing a uniquely organic mosaic effect.

The set comprises the following stones:
Oval, 11.36 cts; Oval, 23.64 cts; Oval, 19.31 cts; Cushion, 11.97 cts; Oval, 8.27 cts; Oval, 9.17 cts; Oval, 22.91 cts; Oval, 16.14 cts; Oval, 19.57 cts; and Elongated Oval, 44.23 cts - totaling 186.57 carats. The largest cabochon measures 43.31 x 17.20 x 6.87 mm.

A superb suite of gem-grade dinosaur bone, skillfully polished and displaying the exceptional color and pattern for which material from the Morrison Formation is prized.

Provenance: Property of a Distinguished Southern California Collector


More Information: All items are offered "as is." While every effort has been made to accurately describe each lot, certain pieces—particularly fossils, minerals, and carvings—may exhibit minor imperfections, repairs, restorations, or natural wear consistent with age, excavation, or handling. Prospective buyers are encouraged to carefully review photographs and descriptions and to request additional condition information prior to bidding.


Condition Report*: Condition report available upon request.
*Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.

Auction Info

Auction Dates
December, 2025
2nd Tuesday
Bids + Registered Phone Bidders: 11
Lot Tracking Activity: N/A
Page Views: 203

Buyer's Premium per Lot:
25% of the successful bid per lot.

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Sold on Dec 2, 2025 for: $1,218.75
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