A Boulder Opal Specimen,, Australia,, consisting of an

Presenting a duo of exquisite Koroit Yowah matrix boulder opals, these specimens showcase the spectacular beauty native to Queensland, Australia. Their fine polish reveals a dazzling array of colors a

Presenting a duo of exquisite Koroit Yowah matrix boulder opals, these specimens showcase the spectacular beauty native to Queensland, Australia. Their fine polish reveals a dazzling array of colors a

This lot features three natural Koroit Boulder Opals, summing up to 99 carats, with the largest specimen measuring 28 x 18 x 12 mm. Harvested from the renowned mines of Queensland, Australia, each rou

ring, GG 750/000, central boulder opal (Australia), very fine quality with intensive blue - and bright green color, at the side 7 brilliants c. 0.60 ct tw-vsi/si, ring head c. 22.8 x 18.0 mm, ring sha

pendant, yellow gold 585/000, boulder opal (Australia), upper half of the opal mainly with  red color shades, lower half mainly with green and blue color shades, height = 40.3 mm, total c. 5.12 g

Sky Blue Boulder Opal Specimen, 2 1/4 x 1 1/4".

Quantity: 1 Condition: Good Height: 5cm or approximately 1.97 inches Width: 17.5cm or approximately 6.89 inches Depth: 2.75cm or approximately 1.08 inches Weight: 382.7g or approximately 13

Dimensions: 23x18x14 mm; Weight: 33.70 Cts. Photos in wet condition. Boulder opal is a unique gem that contains pieces of the hostrock it grew from, along with precious opal. Some opals are attached t

Thousand Planet Auction House Welcome to our auction house, today auction brought to you by Leharlequin Co., Ltd based in Bangkok, Thailand specialize in all kinds of opal and color gemstone both in m

30x24x11mm Weight: 36.4Ct

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 13 mm

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