PLATINUM 5.5 CT. NO HEAT SAPPHIRE & DIAMOND RING.
Updated August 27, 2026
| Lot number | 0037 |
| Estimate | $10,000 - $15,000 |
| Opening bid | $5,000 |
| Category | Jewelry & Watches |
| Auction | Post Labor Day Live Auction |
| Date | September 16, 2026 at 10:00 AM EDT |
| Auction house | William Smith Auctions |
| Location | Plainfield, New Hampshire |
A platinum (tested) halo-style ring set with an approx. 5.5 ct., faceted oval, medium, slightly violetish-blue sapphire, measuring, 10.95 x 8.27 x 7.71mm deep, accompanied by a GIA Report
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