2.45 Carat ---- Natural Royal Blue Tanzanite -- Round Cut
Updated August 27, 2026
| Lot number | 0642 |
| Estimate | $1,800 - $2,100 |
| Opening bid | $150 |
| Auction | September 19 Saturday 4pm |
| Date | September 19, 2026 at 7:00 PM EDT |
| Auction house | California Gemstones |
| Location | Oceanside, California |
A highly sought-after 2.45 carat loose Tanzanite. Known for its scarcity and intense trichroism, this stone is valued for its deep royal blue color, classic round cut. Tanzanite is a rare gemstone
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