Bidspirit auction | Turritella Agate Oval Cabochon Gemstone

Turritella Agate Oval Cabochon Gemstone - An oval cabochon turritella agate gemstone . The stone features a deep brownish-black matrix densely packed with silicified snail shell inclusions in shades of cream and tan, displaying characteristic spiral cross-sections. The piece is finished with a smooth, high-domed polish.4.2ct Dimensions: 13.9W MM Condition: Good