Rocks, Minerals & Fossils

12.39Ct Boulder Opal - Australian Opal, 135B First Image

#image-loader-main { display: none; }

12.39Ct Boulder Opal - Australian Opal, 135B First Image

12.39Ct Boulder Opal - Australian Opal, 135B

Total Sales1 Sold

Median Sale Price

Sale Price Range

Similar Upcoming Sales

12.46 Ct Natural Black Flashing Fire Opal Oval Cab (1 of 4)

12.46 Ct Natural Black Flashing Fire Opal Oval Cab

4 days Left

16.10 Ct Natural Black Flashing Fire Opal Oval Cab (1 of 4)

16.10 Ct Natural Black Flashing Fire Opal Oval Cab

4 days Left

Natural Multi Color Flashing Boulder Opal Gemstones 4.44 Ct. Oval Cabochon Shape 11.7 x 10.3 Mm. (1 of 3)

Natural Multi Color Flashing Boulder Opal Gemstones 4.44 Ct. Oval Cabochon Shape 11.7 x 10.3 Mm.

Treasure of Gems & Jewelry

May 31, 2026

1.38 Ct Natural Black Flashing Fire Opal Oval Cab (1 of 2)

1.38 Ct Natural Black Flashing Fire Opal Oval Cab

1 day Left

1.19 Ct Natural Black Flashing Fire Opal Oval Cab (1 of 3)

1.19 Ct Natural Black Flashing Fire Opal Oval Cab

1 day Left

1.34 Ct Natural Black Flashing Fire Opal Oval Cut (1 of 3)

1.34 Ct Natural Black Flashing Fire Opal Oval Cut

1 day Left

1.14 Ct Natural Black Flashing Fire Opal Oval Cut (1 of 2)

1.14 Ct Natural Black Flashing Fire Opal Oval Cut

1 day Left

1.29 Ct Natural Black Flashing Fire Opal Oval Cab (1 of 2)

1.29 Ct Natural Black Flashing Fire Opal Oval Cab

1 day Left

1.43 Ct Natural Black Flashing Fire Opal Oval Cut (1 of 3)

1.43 Ct Natural Black Flashing Fire Opal Oval Cut

1 day Left

2.26 Ct Natural Black Flashing Fire Opal Oval Cut (1 of 3)

2.26 Ct Natural Black Flashing Fire Opal Oval Cut

4 days Left

1.73 Ct Natural Black Flashing Fire Opal Oval Cut (1 of 3)

1.73 Ct Natural Black Flashing Fire Opal Oval Cut

1 day Left

1.66 Carats Electric Green Web Matrix Boulder Opal - Natural Australian Stone, LZ47 (1 of 2)

1.66 Carats Electric Green Web Matrix Boulder Opal - Natural Australian Stone, LZ47

1 day Left

8.51 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 57XM (1 of 2)

8.51 Carats Boulder Opal Cabochon - Natural Matrix & Play-of-Color Specimen, 57XM

1 day Left

2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XM (1 of 2)

2.55 Carats Koroit Boulder Opal Cabochon - Natural Australian Stones 11.8x6.8mm, 9XM

1 day Left

2.22Ct Welo Black Opal Faceted Polished - Ethiopian Opal (1 of 7)

2.22Ct Welo Black Opal Faceted Polished - Ethiopian Opal

Ksmith Heritage Auctioneers

Jul 26, 2025

2.07Ct Welo Black Opal - Ethiopian Opal - Faceted Polished (1 of 6)

2.07Ct Welo Black Opal - Ethiopian Opal - Faceted Polished

Ksmith Heritage Auctioneers

Jul 27, 2025

TOP