4 days LeftBOULDER OPAL DESIGN RING YELLOW GOLD MELEEEst. $7,500-$11,000$25NY Elizabeth Beverly Hills, CA
May 24, 2026Jamie Joseph 14K Gold & Boulder Opal Ring, Size 7Est. $600-$900$300(1 bid)Hughes AuctionsSunland, CA
May 24, 2026Jamie Joseph Blue Boulder Opal Ring, 14K Gold Bezel & Sterling Silver BandEst. $400-$600$200Hughes AuctionsSunland, CA
May 24, 2026Jamie Joseph Boulder Opal Ring, 14K Gold Bezel & Sterling Silver BandEst. $600-$800$300Hughes AuctionsSunland, CA
May 24, 2026Annette Ferdinandsen 18K Yellow Gold Boulder Opal Ring, Size 5.75Est. $500-$700$250Hughes AuctionsSunland, CA
May 24, 2026Jamie Joseph Boulder Opal Ring, 14K Gold Bezel & Sterling Silver BandEst. $600-$800$300Hughes AuctionsSunland, CA
May 21, 2026Margot McKinney Rose Gold, Boulder Opal, South Sea Cultured Pearl, Colored Stone and Diamond RingEst. $4,000-$6,000$2,000DOYLE Auctioneers & AppraisersNew York, NY
Live NowVintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond AccentsEst. $2,730-$3,549$100BidhausNew York, NY
2 days Left18K White Gold Ladies Ring with 22.41ct Boulder Opal and 1.16ct tw Adjacent DiamondsEst. $13,250-$17,025$50Riverside GalleriesArcadia, CA
5 days Left18K White Gold Ladies Ring with 22.41ct Boulder Opal and 1.16ct tw Adjacent DiamondsEst. $13,250-$17,025$50Riverside GalleriesArcadia, CA
May 20, 2026Platinum Cocktail Ring With Large Boulder Opal and Diamond AccentsEst. $4,394-$5,712$100BidhausNew York, NY
19 hrs LeftPlatinum Cocktail Ring With Large Boulder Opal and Diamond AccentsEst. $7,233-$8,137$2,050Diamond DepotNew York, NY
Buy NowVintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond Accents$2,660(11 bids)Mynt AuctionsNew York, NY
May 19, 2026Amije Boulder Opal 6.4ct Diamond 0.22ct Platinum 900 Cocktail Ring Box PaperEst. $3,725-$4,475$1,850SEUYCORaleigh, NC
Buy NowPlatinum Cocktail Ring with Colorful Boulder Opal and Diamond Accents$2,890Diamond DepotNew York, NY
Buy NowPlatinum Cocktail Ring With Large Boulder Opal and Diamond Accents$4,280Diamond DepotNew York, NY
Buy NowPlatinum Cocktail Ring with Colorful Boulder Opal and Diamond Accents$2,890Diamond DepotNew York, NY
May 24, 202614K GOLD RING WITH NATURAL BOULDER OPAL, 0.03CTS OF DIAMOND ( SIZE: 8.25 ) 6GEst. $2,549-$2,849$2,050Modern JewelryValley Village, CA
May 31, 2026ANTIQUE 14K YELLOW GOLD NATURAL AUSTRALIAN FIRE BOULDER OPAL HALO RINGEst. $841-$940$690Modern JewelryValley Village, CA
May 24, 202614K GOLD RING WITH NATURAL BOULDER OPAL AND DIAMONDS (SIZE 6.25) 3.5 GRAMEst. $1,273-$1,423$1,025Modern JewelryValley Village, CA
May 31, 2026DESIGNER 10K YELLOW GOLD CABOCHON AUSTRALIAN BOULDER FIRE OPAL & DIAMOND RINGEst. $671-$750$550Modern JewelryValley Village, CA