Sold2022NO RESERVE - A BOULDER OPAL STICK PIN in yellow gold, set with a polished boulder opal bead, noNO RESERVE - A BOULDER OPAL STICK PIN in yellow gold, set with a polished boulder opal bead, no assay marks, head 8.5mm, 1.9g. See Sold Price
Sold202474Ct Wood Replacement Fossil Australian Polished Boulder Opal Rough SpecimensDimension: 16 x 14 x 13 mmSee Sold Price
Sold2022A BOULDER OPAL AND PINK SAPPHIRE BROOCH / NECKLACE in 18ct gold, set with a central polished boulderA BOULDER OPAL AND PINK SAPPHIRE BROOCH / NECKLACE in 18ct gold, set with a central polished boulder opal of 39.0mm in a border of round cut pink sapphires, on a black cord necklace, clasp stamped 750See Sold Price
Sold2023116.15Ct Koroit Boulder Polished Opal 36.6x29x9.2mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold202310.63Ct Koroit Boulder Opal Polished - Australian Opal - Freeform CabochonThousand 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 mSee Sold Price
Sold2023Group of 7 Polished Australian Queensland Boulder Opal 43Ct 20.3x12.4x5.4mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold2023Group of 7 Polished Australian Queensland Boulder Opal 42Ct 17.8x12.4x3.5mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold20239.12Ct Wood Replacement Fossil Boulder Opal Polished - Australian Opal - Rectangle CabochonThousand 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 mSee Sold Price
Sold20235.94Ct Pipe Crystal Boulder Opal Polished - Australian Opal - Oval CabochonThousand 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 mSee Sold Price
Sold2023Group of Polished Australian Queensland Boulder Opal 85Ct 26.7x26.6x5mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold20242.78Ct Koroit Boulder Opal Polished - Australian Opal - Oval CabochonKsmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturiSee Sold Price
Sold202315.62Ct Winton Boulder Opal Polished - Australian Opal - Parallelogram CabochonThousand 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 mSee Sold Price
Sold202310.08Ct Wood Fossil Boulder Opal Polished - Australian Opal - Oval CabochonKsmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturiSee Sold Price
Sold2023Group of Polished Australian Queensland Boulder Opal 32.75Ct 59x13mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold2023Group of Polished Australian Queensland Boulder Opal 45.7Ct 16.6x11.8x4.3mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold2023Group of Polished Australian Queensland Boulder Opal 99.3Ct 29.8x22x7.6mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold2023Group of 5 Polished Australian Queensland Boulder Opal 70.5Ct 27.2x20.9x4mmThousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, MiSee Sold Price
Sold202310.32Ct Koroit Boulder Opal Polished - Australian Opal - Oval CabochonKsmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturiSee Sold Price
Sold202321.29Ct Koroit Boulder Opal Polished - Australian Opal - Pear CabochonThousand 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 mSee Sold Price
Sold20237.84Ct Winton Boulder Opal Polished - Australian Opal - Oval CabochonThousand 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 mSee Sold Price
Sold202326.85Ct Koroit Boulder Opal Polished - Australian Opal - Pear CabochonThousand 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 mSee Sold Price
20236.24Ct Koroit Boulder Opal Polished - Australian Opal - Oval CabochonThousand 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 mSee Sold Price
Sold20234.78Ct Winton Boulder Opal Polished - Australian Opal - Oval CabochonThousand 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 mSee Sold Price
Sold20236.71Ct Wood Fossil Boulder Opal Polished - Australian Opal - Oval CabochonThousand 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 mSee Sold Price
2 days LeftRipley AuctionsCustom 14K gold boulder opal and diamond link drop earrings 2 3/4"H x 1/2"W$120(2 bids)
2024Thousand Planet Auction HouseA Collection of Australian Boulder Opal Rub Rough Specimens, Direct from Winton MineSee Sold Price
May 22Hannam's Auctioneers LtdA collection of silver gemstone rings including Boulder Opal. 38 grams. O to S. (qty)£10
6 days LeftTreasure of Gems & JewelryNatural Multi Color Flashing Boulder Opal 31.58 Ct. Free Form Cabochon Shape 37 x 23 Mm. Gemstone$1
2024Thousand Planet Auction HouseA Gleaming Koroit Boulder Opal Cabochon, Contemporary Australian GemstoneSee Sold Price
2024Thousand Planet Auction HouseA Trio of Natural Koroit Boulder Opals, 87Ct, Direct from Queensland MinesSee Sold Price
2 days LeftRipley AuctionsEstate 14k yellow gold openwork freeform floral earrings with boulder opal and diamond accents. 1"H$50(1 bid)
