VINTAGE 18K GOLD & PLATINUM DIAMOND BROOCH.
Updated August 27, 2026
| Lot number | 0086 |
| Estimate | $5,000 - $7,000 |
| Opening bid | $2,500 |
| 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 vintage, 18k yellow gold and platinum (tested), two-piece brooch, set with approx. 15.0 ct. tw., round brilliant and marquise cut, natural diamonds of G-H-I-J-K-L color and VS-SI clarity, diamond
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