Opal

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An Assortment of Natural Purple Opal Rough and Tumbled Stones with JSL Report: An assortment of natural purple opal rough and tumbled stones, including one specimen with a Japan Gemstone Science Laboratory (JSL) identification report. The stones feature a translucent violet to p

2026

An Assortment of Natural Purple Opal Rough and Tumbled Stones with JSL Report

Gallery 63Atlanta, GA

An Assortment of Vintage Jewelry Including a Sterling Silver Brooch, Opal Earrings, and Rings: An assortment of vintage jewelry featuring a sterling silver floral brooch, a pair of screw-back earrings, and two rings. The brooch is designed with textured petals and three light blue spherical bea

2026

An Assortment of Vintage Jewelry Including a Sterling Silver Brooch, Opal Earrings, and Rings

Gallery 63Atlanta, GA

925 STERLING SILVER OPAL TOURMALINE EARRINGS: Sterling silver stud earrings with both October birthstones (opal and tourmaline). Gem stones both heart-shaped cuts, opal and pink tourmaline. Stamped 925 on post. Size 0.62x0.34x0.16 inches. This lo

2026

925 STERLING SILVER OPAL TOURMALINE EARRINGS

Affiliated AuctionsTallahassee, FL

16.67 Ct Natural Pink Opal Oval Cab Pair: weight - 16.67 Ct / Size - 18.00 x 13.00 x 5.30 mm / 2 Pc's / Shape - Excellent Oval Cab / Origin - Peru / Treatment - None

2026

16.67 Ct Natural Pink Opal Oval Cab Pair

Gems AuctionBangkok, TH

2.27Ct Boulder Opal - Australian Opal, 476B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 2.27Ct Dimension: 12.1x9.7x2.8 mm Treatment: Natural Untreated Type: Cabochon, Polishe

2026

2.27Ct Boulder Opal - Australian Opal, 476B

Ksmith Heritage AuctioneersJelutong, Penang

*9.23Ct Boulder Opal - Australian Opal , 197C: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 9.23Ct Dimension: 17x11.8x4.6 mm Treatment: Natural Untreated Type: Cabochon, Pol

2026

*9.23Ct Boulder Opal - Australian Opal , 197C

Ksmith Heritage AuctioneersJelutong, Penang

*30Ct Boulder Opal - Australian Opal , 494E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 30Ct Dimension: 28.5x28.4x4.5 mm Treatment: Natural Untreated Type: Cabochon, Pol

2026

*30Ct Boulder Opal - Australian Opal , 494E

Ksmith Heritage AuctioneersJelutong, Penang

11.85Ct Boulder Opal - Australian Opal , 27E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 11.85Ct Dimension: 22.7x16.4x3.1 mm Treatment: Natural Untreated Type: Cabochon,

2026

11.85Ct Boulder Opal - Australian Opal , 27E

Ksmith Heritage AuctioneersJelutong, Penang

3.72Ct Boulder Opal - Australian Opal , 41E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 3.72Ct Dimension: 12.9x10.2x2.7 mm Treatment: Natural Untreated Type: Cabochon, P

2026

3.72Ct Boulder Opal - Australian Opal , 41E

Ksmith Heritage AuctioneersJelutong, Penang

*7.84Ct Boulder Opal - Australian Opal, 162B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 7.84Ct Dimension: 15x12.5x4.7 mm Treatment: Natural Untreated Type: Cabochon, Polished

2026

*7.84Ct Boulder Opal - Australian Opal, 162B

Ksmith Heritage AuctioneersJelutong, Penang

10.18Ct Boulder Opal - Australian Opal , 84E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 10.18Ct Dimension: 21x17.3x3.8 mm Treatment: Natural Untreated Type: Cabochon, Po

2026

10.18Ct Boulder Opal - Australian Opal , 84E

Ksmith Heritage AuctioneersJelutong, Penang

11.02Ct Boulder Opal - Australian Opal , 876E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 11.02Ct Dimension: 25.4x14.5x4.1 mm Treatment: Natural Untreated Type: Cabochon,

2026

11.02Ct Boulder Opal - Australian Opal , 876E

Ksmith Heritage AuctioneersJelutong, Penang

15.83Ct Boulder Opal - Australian Opal, 145B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 15.83Ct Dimension: 22.4x16.8x5.3 mm Treatment: Natural Untreated Type: Cabochon, Polis

2026

15.83Ct Boulder Opal - Australian Opal, 145B

Ksmith Heritage AuctioneersJelutong, Penang

8.51Ct Boulder Opal - Australian Opal, 734B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 8.51Ct Dimension: 21.4x11.3x4.2 mm Treatment: Natural Untreated Type: Cabochon, Polish

2026

8.51Ct Boulder Opal - Australian Opal, 734B

Ksmith Heritage AuctioneersJelutong, Penang

10.16Ct Boulder Opal - Australian Opal, 737B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 10.16Ct Dimension: 20x16x3.4 mm Treatment: Natural Untreated Type: Cabochon, Polished<

2026

10.16Ct Boulder Opal - Australian Opal, 737B

Ksmith Heritage AuctioneersJelutong, Penang

*2.21Ct Boulder Opal - Australian Opal , 210C: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 2.21Ct Dimension: 9.1x9x2.6 mm Treatment: Natural Untreated Type: Cabochon, Polis

2026

*2.21Ct Boulder Opal - Australian Opal , 210C

Ksmith Heritage AuctioneersJelutong, Penang

14.18Ct Blue Boulder Opal - Australian Opal , 76E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 14.18Ct Dimension: 18.8x14.2x5.1 mm Treatment: Natural Untreated Type: Cabochon,

2026

14.18Ct Blue Boulder Opal - Australian Opal , 76E

Ksmith Heritage AuctioneersJelutong, Penang

*2.28Ct Yowah Boulder Opal - Australian Opal , 94E: Ksmith Heritage Auctioneers Subject: Natural Yowah Boulder Opal Origin: Australia Carat Weight: 2.28Ct Dimension: 12x7.8x3.4 mm Treatment: Natural Untreated Type: Cabochon

2026

*2.28Ct Yowah Boulder Opal - Australian Opal , 94E

Ksmith Heritage AuctioneersJelutong, Penang

11.46Ct Blue Boulder Opal - Australian Opal , 231E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 11.46Ct Dimension: 16.3x15.7x5 mm Treatment: Natural Untreated Type: Cabochon, Po

2026

11.46Ct Blue Boulder Opal - Australian Opal , 231E

Ksmith Heritage AuctioneersJelutong, Penang

17.83Ct Boulder Opal - Australian Opal, 405B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 17.83Ct Dimension: 32.7x20x2.9 mm Treatment: Natural Untreated Type: Cabochon, Polishe

2026

17.83Ct Boulder Opal - Australian Opal, 405B

Ksmith Heritage AuctioneersJelutong, Penang

13.41Ct Boulder Opal - Australian Opal , 225E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 13.41Ct Dimension: 25.3x19.4x2.9 mm Treatment: Natural Untreated Type: Cabochon,

2026

13.41Ct Boulder Opal - Australian Opal , 225E

Ksmith Heritage AuctioneersJelutong, Penang

6.75Ct Koroit Matrix Boulder Opal Polished - Australian Opal - Oval Cabochon , 125E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 6.75Ct Dimension: 14.4 x 12.4 x 3.9 mm Treatment: Natural Untreated Shape: Oval

2026

6.75Ct Koroit Matrix Boulder Opal Polished - Australian Opal - Oval Cabochon , 125E

Ksmith Heritage AuctioneersJelutong, Penang

26Ct Winton Boulder Rough Opal - Australian Opal - Freeform Rough, 116B: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 26Ct Dimension: 31 x 13 x 7 mm Treatment: Natural Untreated Shape: Freeform Type

2026

26Ct Winton Boulder Rough Opal - Australian Opal - Freeform Rough, 116B

Ksmith Heritage AuctioneersJelutong, Penang

*24.07Ct Calibrated 7x5mm Welo Opal Set - Ethiopian Opal, 1194B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 24.07Ct Dimension: 7x5.1x2.4 mm Treatment: Natural Untreated Type: Cabochon, Pol

2026

*24.07Ct Calibrated 7x5mm Welo Opal Set - Ethiopian Opal, 1194B

Ksmith Heritage AuctioneersJelutong, Penang

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24

Opal Auctions

Superb Iatmul Mask, Papua New Guinea

Fine Borneo Shaman Bin with Lid

Early Japanese Oni Demon Mask

Fine Ethnographic, Asian & Antiques

Inspired Auctions

Starts on:

Brea, CA, US

2 days Left

6.40 Cts Natural amethyst Gemstone - 12X10.5X8 mm

1.25 Carats Deep Blue Natural Aquamarine Loose Gemstone - 9X6X4 mm

3.60 Carats Natural Santa Maria Aquamarine Gemstone - 18X7X4 mm

NO RESERVE Loose Gemstones

Fantasy Jewelry

Starts on:

Muscat, Muscat, AE

17 hrs Left

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