5.00 Carat Natural Blue Tanzanite Trilliion Cut AGL Certified
Updated August 19, 2026
This auction ended on August 28, 2026.
See upcoming auctions from California Gemstones.
| Lot number | 8212 |
| Estimate | $6,000 - $8,000 |
| Opening bid | $50 |
| Auction | Friday Aug 28 4pm |
| Date | August 28, 2026 at 7:00 PM EDT |
| Auction house | California Gemstones |
| Location | Oceanside, California |
A premium-grade, investment-sized loose gemstone known for its exceptional brilliance and distinct triangular symmetry. Tanzanite is a single-source gem found exclusively near Mount Kilimanjaro in
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