Sold20181.19 Carat Loose Australian Boulder OpalItem: 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: NSee Sold Price
Sold20182.34 Carat Loose Australian Boulder OpalItem: 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: NonSee Sold Price
Sold202412 Carats of Australian Black Boulder Opal2.44 grams or 12 carats. Meausres 3/4" by 1/2" by 1/4"See Sold Price
Sold20185.92 ct Australian Boulder OpalItem: 5.92 ct Australian Boulder Opal Gemstones: Opal Carat Weights: 5.92 Size/Dimensions: 17.5 mm x 12.4 mm x 4.0 mm Please note that this lot has a confidential reserve. When you leave a bid in advaSee Sold Price
Sold20189.81 ct Australian Boulder OpalItem: 9.81 ct Australian Boulder Opal Gemstones: Opal Carat Weights: 9.81 Size/Dimensions: 16.7 mm x 15.2 mm x 4.2 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so that collectSee Sold Price
Sold201810.04Â ct Australian Boulder OpalItem: 10.04Â ct Australian Boulder Opal Gemstones: Opal Carat Weights: 10.04 Size/Dimensions: 17.9Â mm x 15.6 mm x 4.9 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so that colSee Sold Price
Sold201810.74 ct Australian Boulder OpalTitle: 10.74 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 10.74 Size/Dimensions: 26 mm x 12 mm x 4.5 mm Additional Information: Koroit Opal Fields Please note that this lot has aSee Sold Price
Sold201810.45 ct Australian Boulder OpalTitle: 10.45 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 10.45 Size/Dimensions: 30.4 mm x 10.0 mm x 4.2 mm Additional Information: Koroit Opal Fields No Reserve: This lot startsSee Sold Price
Sold201822.9 ct Australian Boulder OpalTitle: 22.9 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 22.9 Size/Dimensions: 30 mm x 14 mm x 6.6 mm Additional Information: Koroit Opal Fields No Reserve: This lot starts at $1See Sold Price
Sold2018Australian Boulder OpalReserve Reduced! Title: Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 12.3 Size/Dimensions: 33 mm x 10 mm x 3.6 mm Additional Information: Australian Koroit Opal Fields Reserve: $25.0See Sold Price
Sold20187.82 Australian Boulder OpalItem: 7.82 Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 7.82 Size/Dimensions: 16.2 mm x 13.1 mm x 4.8 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so that coSee Sold Price
Sold2018Australian Boulder OpalReserve Reduced! Title: Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 7.2 Size/Dimensions: 16.3 mm x 10.6 mm x 5.1 mm Additional Information: Australian Koroit Opal Fields Reserve: $1See Sold Price
Sold2018Australian Boulder OpalReserve Reduced! Title: Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 4.3 Size/Dimensions: 17.7 mm x 12 mm x 3.1 mm Additional Information: Australian Koroit Opal Fields Reserve: $10.See Sold Price
Sold20183.55 ct Australian Boulder OpalItem: 3.55 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 3.55 Size/Dimensions: 12.2 mm x 10.8 mm x 3.5 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so thatSee Sold Price
Sold201853.88 Australian Boulder OpalItem: 53.88 Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 53.88 Size/Dimensions: 38 mm x 25 mm x 8 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so that collecSee Sold Price
Sold20187.28 ct Australian Boulder OpalItem: 7.28 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 7.28 Size/Dimensions: 14.5 mm x 9.5 mm x 5.0 mm No Reserve: This lot starts at $1 and has no reserve as a courtesy so thatSee Sold Price
Sold201826.03 ct Australian Boulder OpalItem: 26.03 ct Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 26.03 Size/Dimensions: 23.1 mm x 20.9 mm x 7.2 mm Additional Information: Australian Koroit Boulder Opal No Reserve: ThisSee Sold Price
Sold2018Australian Boulder OpalItem: Australian Boulder Opal Gemstones: Boulder Opal Carat Weights: 1.2 Size/Dimensions: 8 mm x 6.1 mm x 2.8 mm Additional Information: Koroit Opal Fields No Reserve: This lot starts at $1 and has noSee Sold Price
Sold2024310 Ct Koroit Boulder Opal Rough - Australian Opal - Freeform RoughDimension: 13 TO 25 mmSee Sold Price
Sold202319Ct Natural Loose Australian Koroit Yowah Boulder Opal Cabochon28x17x4mm Weight: 19 CaratSee Sold Price
2 days LeftThousand Planet Auction HouseA Gleaming Koroit Boulder Opal Cabochon, Contemporary Australian GemstoneUS$5
2 days LeftThousand Planet Auction HouseA Gleaming Koroit Boulder Opal Cabochon, Contemporary Australian GemstoneUS$5
2 days LeftThousand Planet Auction HouseA Trio of Natural Koroit Boulder Opals, 99Ct, Direct from Queensland MinesUS$5
2 days LeftThousand Planet Auction HouseA Trio of Natural Koroit Boulder Opals, 87Ct, Direct from Queensland MinesUS$5