20.08ct loose Australian Opal

Dimension: 25.6x18x4.3mm 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 Austra

2 Loose Australian Opals.

Item: Australian Black Opal - Lightning Ridge Loose Gemstone: Black Opal Carat Weight: 1.2 Size/Dimensions: 10 mm x 6 mm x 3.8 mm Shape: Freeform  / Origin: Lighting Ridge, Australia / Treatment: No

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

Weight - 4.49 Ct / Size - 16.00 x 9.50 x 3.40 mm / Shape - Pear Cabochon / Color - Multicolor / Clarity - Opaque / Origin - Australian / Treatment - None

Weight - 4.77 Ct / Size - 16.00 x 9.70 x 3.60 mm / Shape - Pear Cabochon / Color - Multicolor / Clarity - Opaque / Origin - Australian / Treatment - None

Item: Australian Lighting Ridge Black Opal Loose Gemstone: Opal Carat Weight: 3.08 Dimensions: 15.5 mm x 12.5 mm x 3.5 mm Shape: Triangle Shipping: Domestic: Flat-rate of $4.00 to anywhere within the

28x17x4mm Weight: 19 Carat

Dimension: 12.7x9.7mm 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 Australia

Item: Australian Lighting Ridge Black Opal Loose Gemstone: Black Opal Carat Weight: 3.02 Origin: Lightning Ridge, Australia Please note that this lot has a confidential reserve. When you leave a bid i

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

Item: Australian Lighting Ridge Black Opal Loose Gemstone: Black Opal Carat Weight: 0.9 Size/Dimensions: 7.1 mm x 6.1 mm x 3.4 mm Origin: Lightning Ridge, Australia Please note that this lot has a con

14x12x4mm Weight: 7 Carat

19x10x4mm Weight: 8Ct

Title: Australian Lighting Ridge White Opal Metal Purity: Gemstones: Opal Carat Weights: 1.92 Size/Dimensions: 12.8 mm x 9.8 mm x 2.6 mm Shape: Oval / Origin: Lighting Ridge, Australia / Treatment: No

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