Loose boulderopal

Loose boulder opal approx. 81.49 ct, play of colours in green-blue-red

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 10.87ct twColor Multi colorComment Beautiful Stone

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 6.69ct twColor Multi color

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 18.95ct twColor Multi colorComment Beautiful Stone

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 8.40ct twColor Multi colorComment Beautiful Stone

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 4.62ct twColor Multi colorComment Beautiful Stone

Loose Natural Boulder opalCondition NewStone Boulder opalStone Weight 4.60ct twColor Multi colorComment Beautiful Stone

Item: NO RESERVE Australian Boulder Opal Loose Gemstone: Boulder Opal Carat Weight: 1.19 Size/Dimensions: 8.1 mm x 6.5 mm x 2.5 mm Shape: Oval  / Origin: Koroit Opal Fields, Australia / Treatment: N

Item: NO RESERVE Australian Boulder Opal Loose Gemstone: Boulder Opal Carat Weight: 2.34 Size/Dimensions: 10.4 mm x 8.2 mm x 3.9 mm Shape: Oval / Origin: Koroit Opal Fields, Australia / Treatment: Non

Opal measures 18x11.3mm Natural multi color boulder opal New 4.35ct

28x17x4mm Weight: 19 Carat

10.69ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Australia10.69ct Measures 21.8mm x 14.3mm

10.46ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Australia10.46ct Measures 16.5mm x 9.8mm Polished cabochon, beautiful

Dimension: 23.8x16.6mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi

14x12x4mm Weight: 7 Carat

19x10x4mm Weight: 8Ct

Dimension: 21.8x15.1mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi

Dimension: 19.2x12.9mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi

Dimension: 21x16.8mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 43x14.5mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 25x18mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian L

Dimension: 15.6x13mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australian

Dimension: 27.2x16.6mm Natural History of Australian Opal & Mineral Auction by Thousand Planet Auction House featuring the beauty of Boulder Opal art in cabochon cutting and rough, well known Australi