PLATINUM 0.40CT DIAMOND AND AUSTRALIAN BLACK OPAL RING
Updated August 27, 2026
This auction ended on September 4, 2026.
See upcoming auctions from Robinhood Auctions or current jewelry & watches auctions.
| Lot number | 0109 |
| Estimate | $1,600 - $6,400 |
| Opening bid | $1,600 |
| Category | Jewelry & Watches |
| Auction | The Jewelry & Watch Collection |
| Date | September 4, 2026 at 1:00 PM EDT |
| Auction house | Robinhood Auctions |
| Location | Las Vegas, Nevada |
A breathtaking 2.7 carat Australian Black Opal makes a statement at the center of this luxury ring. At the sides pieces simple Platinum setting, Diamonds with a total weight of 0.40 carats provide

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