6.30 Carat ---- Natural Cobalt Blue Spinel ---- Cushion Cut --- EGL Certified
Updated August 6, 2026
| Lot number | 0119 |
| Estimate | $19,000 - $21,000 |
| Opening bid | $150 |
| Auction | August 8 Saturday 7pm |
| Date | August 8, 2026 at 10:00 PM EDT |
| Auction house | California Gemstones |
| Location | Oceanside, California |
An investment-grade gemstone from Sri Lanka. Featuring a classic cushion cut, it exhibits a brilliant, lively blend of cobalt blue hues. Renowned for its natural, unheated state, it is highly sought
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