17.81 Carats Deep Blue and Brown Matrix Boulder Opal Cabochon - Natural Australian Stone, 41XMEst. US$80-US$160
6.01 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 39XMEst. US$60-US$120
4.34 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.3x9.3mm, 4XMEst. US$60-US$120
1.99 Carats Iridescent Blue and Violet Boulder Opal Cabochon - Natural Australian Stone, 59XMEst. US$60-US$120
4.15 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 13.9x9.9mm, 17XMEst. US$60-US$120
3.08 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 12.8x9.3mm, 2XMEst. US$60-US$120
3.08 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 54XMEst. US$60-US$120
11.90ct Winton Boulder Opal Rough - Multicolored Play-of-Color Specimen, 32XMEst. US$60-US$120
17.32 Carats Winton Boulder Opal Rough - Natural Australian Stone, 37XPEst. US$60-US$120
2024 Iron Boulder Stellar Crown 071/142 Holo Pokemon CardEst. US$4-US$8
15.19ct Boulder Opal Cabochon - Banded Matrix & Play-of-Color Specimen, 34XMEst. US$60-US$120
11.79 Carats Winton Boulder Opal Rough - Broad Blue-Green Play-of-Color Specimen, 33XMEst. US$40-US$80
3.44 Carats Boulder Opal Cabochon - Natural Matrix Inclusion Specimen, 51XMEst. US$60-US$120
14.83ct Boulder Opal Cabochon - Soft Pastel Play-of-Color Specimen, 44XMEst. US$60-US$120
6.68 Carats Cream-Blue Boulder Opal with Dark Matrix - Natural Australian Stone, 36XMEst. US$60-US$120
Vintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond AccentsAustralian Boulder Opal and Diamond Pendant in 14k Yellow GoldEst. US$2,387-US$3,580
7.62Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 875AEst. US$120-US$240
Platinum Pendant Necklace with Boulder Opal and Diamond Accents Adjustable ChainNatural Multi-Color Flashing Boulder Opal 21.40 Ct. Free Form Cabochon Shape 31 x 16 Mm GemstoneEst. US$227-US$357
42.94 Carats Winton Boulder Opal Rough Slab - Natural Australian Opal, 41XPEst. US$60-US$120
7.27 Carats Soft Blue and Lavender Boulder Opal Cabochon - Natural Australian Stone, 63XMEst. US$60-US$120
1.93Ct Winton Boulder Opal Polished - Australian Opal - Oval Cabochon, 837AEst. US$70-US$140
Multi Color Flashing Boulder Opal 11.88 Ct. Free Form Cabochon Shape 15.4 x 15.8 Mm Gemstone fromEst. US$114-US$180
