1 day LeftPlatinum Cocktail Ring With Large Boulder Opal and Diamond AccentsEst. US$4,394-US$5,712US$100Mynt AuctionsNew York, NY
Jul 05, 2026Platinum 2.29ctw Black Boulder Opal Diamond Cluster Cocktail RingEst. US$2,002-US$2,602US$100BidhausNew York, NY
Jul 06, 2026VINTAGE RING BOULDER OPAL MEXICO RICHARD GUAD BAND SIZE 8 STERLING SILVER WOMENEst. US$422-US$471US$345Modern JewelryValley Village, CA
Jul 09, 2026Womens Vintage Sterling Silver Southwest Boulder Blue Opal RingEst. US$150-US$250US$50Mannys JewelryHAGERSTOWN, MD
Jul 12, 202614K GOLD RING WITH NATURAL BOULDER OPAL, 0.03CTS OF DIAMOND ( SIZE: 8.25 ) 6GEst. US$2,550-US$2,850US$2,100Modern JewelryValley Village, CA
Buy Now18k Yellow Gold Boulder Opal Diamond Pendant Necklace with Rope ChainUS$3,710BidhausNew York, NY
Buy NowPlatinum Cocktail Ring With Large Boulder Opal and Diamond AccentsUS$4,280Diamond DepotNew York, NY
Buy NowVintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond AccentsUS$2,660(25 bids)BidhausNew York, NY
1 day Left18k Yellow Gold Boulder Opal Diamond Pendant Necklace with Rope ChainEst. US$6,475-US$7,252US$2,900Diamond DepotNew York, NY
4 days LeftVintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond AccentsEst. US$4,641-US$5,197US$1,525Diamond DepotNew York, NY
4 days LeftPlatinum 2.29ctw Black Boulder Opal Diamond Cluster Cocktail RingEst. US$3,403-US$3,811US$1,525Diamond DepotNew York, NY
Jul 06, 2026BOULDER OPAL NAVAJO RING SIZE 5.25 STERLING SILVER WOMENEst. US$320-US$357US$260Modern JewelryValley Village, CA
9 hrs Left5.07 Carats Iridescent Multicolor Boulder Opal - Natural Australian Stone, 56XMEst. US$70-US$140US$5Lazo HeritageThung Wat Don, Sathorn, Bangkok
1 day Left18K White Gold Ladies Ring with 22.41ct Boulder Opal and 1.16ct tw Adjacent DiamondsEst. US$13,250-US$17,025US$50Riverside GalleriesArcadia, CA
5 days Left18K White Gold Ladies Ring with 22.41ct Boulder Opal and 1.16ct tw Adjacent DiamondsEst. US$13,250-US$17,025US$50Riverside GalleriesArcadia, CA
6 days LeftPlatinum Pendant Necklace with Boulder Opal and Diamond Accents Adjustable ChainEst. US$2,964-US$3,853US$2,250BidhausNew York, NY
1 day LeftANTIQUE 14K YELLOW GOLD NATURAL AUSTRALIAN FIRE BOULDER OPAL HALO RINGEst. US$842-US$941US$690Modern JewelryValley Village, CA
1 day LeftDESIGNER 10K YELLOW GOLD CABOCHON AUSTRALIAN BOULDER FIRE OPAL & DIAMOND RINGEst. US$672-US$751US$550Modern JewelryValley Village, CA
Jul 12, 202614K GOLD RING WITH NATURAL BOULDER OPAL AND DIAMONDS (SIZE 6.25) 3.5 GRAMEst. US$1,273-US$1,423US$1,025Modern JewelryValley Village, CA
Buy NowPlatinum Pendant Necklace with Boulder Opal and Diamond Accents Adjustable ChainUS$2,890Diamond DepotNew York, NY
Jul 06, 202614k Yellow Gold Opal and Diamond Band Ring Size 7.5Est. US$3,823-US$4,282US$1,150Diamond DepotNew York, NY
Jul 06, 2026BOULDER OPAL RING BOHO SIZE 5.25 STERLING SILVER WOMENEst. US$184-US$205US$150Modern JewelryValley Village, CA
6 days Left18k Yellow Gold Boulder Opal Diamond Pendant Necklace with Rope ChainEst. US$3,809-US$4,951US$1,750BidhausNew York, NY
Buy NowPlatinum Pendant Necklace with Boulder Opal and Diamond Accents Adjustable ChainUS$2,890BidhausNew York, NY