#18a • 27.30 Carat Opal Specimen

Part of September 2025 Discovery Auction (timed auction by Alaska Premier Auctions & Appraisals)

High bid $170.00

Status: Sold

A natural Welo opal specimen weighing approximately 27.30 carats, notable for its rare rainbow prism color pattern. Welo opals form through the interaction of water and silica-rich volcanic rocks, developing primarily within nodules and seams of basaltic deposits in Ethiopia—a contrast to the sedimentary origins of many other opal varieties. This specimen’s impressive size and unique color display make it a striking piece for collectors or custom design.