491Ct Natural Australian Koroit Yowah Boulder Opal Rough Specimens

26x15cm Weight: 491 grams (Before Packing) Thousand Planet Auction House Season 4: Ten2Go August Collection Auction. A bargain hunter's, fixer-upper's, and pack-rat's dream come true! Our Ten2Go "ware

23x18x12mm Weight: 80.43Ct

Dimension: 35x26mm 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

26x16x8mm Weight: 71.88Ct

Dimension: 22x15mm 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: 16 x 14 x 9 mm

Dimension: 21x18mm 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: 91.6x46.2mm 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

20x21cm Weight: 441 grams (Before Packing) Thousand Planet Auction House Season 4: Ten2Go August Collection Auction. A bargain hunter's, fixer-upper's, and pack-rat's dream come true! Our Ten2Go "ware

26x12cm Weight: 406 grams (Before Packing) Thousand Planet Auction House Season 4: Ten2Go August Collection Auction. A bargain hunter's, fixer-upper's, and pack-rat's dream come true! Our Ten2Go "ware

22x14cm Weight: 475 grams (Before Packing) Thousand Planet Auction House Season 4: Ten2Go August Collection Auction. A bargain hunter's, fixer-upper's, and pack-rat's dream come true! Our Ten2Go "ware

Dimension: 24x22mm 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: 24x20mm 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: 25x16mm 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: 27x18mm 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: 51.6x47.3mm 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

25x18mm Weight: 300 grams (Before Packing) Thousand Planet Auction House Season 4: Ten2Go August Collection Auction. A bargain hunter's, fixer-upper's, and pack-rat's dream come true! Our Ten2Go "ware

28x13x7mm Weight: 70Ct

30x24x11mm Weight: 36.4Ct

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

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