Roberto Coin 18K Rose Gold Diamond and Onyx Ring
Updated August 6, 2026
| Lot number | 0357B |
| Estimate | $5,000 - $6,000 |
| Opening bid | $1 |
| Category | Coins & Currency |
| Auction | $1 Start Luxury Brands Antique Jewelry |
| Date | August 9, 2026 at 1:15 PM EDT |
| Auction house | Eastern European Art Gallery Inc |
| Location | Broomall, Pennsylvania |
The Roberto Coin “Cocktail” ring is crafted from 18K rose gold and set with an onyx and a total of 0.90 carats of diamonds. The ring weighs 24.3 grams, boasting band thickness of 4 mm and top
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