5.90 Carat --- Natural Tanzanian Green Sapphire -- Cushion Cut
Updated August 15, 2026
This auction ended on August 23, 2026.
See upcoming auctions from California Gemstones or current jewelry & watches auctions.
| Lot number | 0105 |
| Estimate | $17,000 - $18,000 |
| Opening bid | $30 |
| Category | Jewelry & Watches |
| Auction | Sunday Aug 23 4pm |
| Date | August 23, 2026 at 7:00 PM EDT |
| Auction house | California Gemstones |
| Location | Oceanside, California |
An investment-grade, loose gemstone featuring a timeless Cushion Cut. Sourced exclusively from the foothills of Mount Kilimanjaro in Tanzania, this rare gem showcases an extraordinary play of light
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