9.40 Carat ---- Natural Tanzanite ----Emerald Step 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 | 0150 |
| Estimate | $21,000 - $23,000 |
| 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 |
A spectacular, investment-grade gemstone. Tanzanite exhibits strong pleochroism (displaying deep blues and rich violets depending on the angle), and the emerald cut's broad facets elegantly highlight
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