Boulder Opals
Late 20th Century Contemporary Pendant Necklaces
Diamond, Opal, 18k Gold
2010s Australian Artisan More Jewelry
Opal
2010s American Contemporary Pendant Necklaces
Opal, Silver
21st Century and Contemporary Fashion Rings
Diamond, White Diamond, Opal, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Drop Earrings
Emerald, Lapis Lazuli, Opal, 18k Gold
2010s American Contemporary Beaded Necklaces
Opal, Sapphire, Tsavorite, Silver
2010s German Arts and Crafts Cocktail Rings
Opal, Yellow Gold, 18k Gold, Gold
21st Century and Contemporary Italian Contemporary Lever-Back Earrings
Opal, 18k Gold, Rose Gold, Gold
Vintage 1980s Cufflinks
Opal, 18k Gold, Yellow Gold
21st Century and Contemporary Vietnamese Contemporary Pendant Necklaces
2010s German Artisan Pendant Necklaces
Opal, Silver
20th Century Fashion Rings
Diamond, Opal, 18k Gold, Yellow Gold
2010s American Contemporary Cocktail Rings
Opal, Yellow Gold
21st Century and Contemporary Vietnamese Contemporary Pendant Necklaces
Vintage 1910s Australian Edwardian Pendant Necklaces
Opal, 15k Gold
2010s Thai Contemporary Pendant Necklaces
Garnet, Opal, Tsavorite, Silver
2010s German Artist Lever-Back Earrings
Opal, Silver
21st Century and Contemporary American Fashion Rings
Diamond, Opal, Platinum
21st Century and Contemporary American Fashion Rings
Opal, Gold, 18k Gold
21st Century and Contemporary American Contemporary Lever-Back Earrings
Diamond, Opal, Yellow Gold, 14k Gold
21st Century and Contemporary American Contemporary Lever-Back Earrings
Diamond, Opal, 18k Gold, Yellow Gold
21st Century and Contemporary American Contemporary Drop Earrings
Emerald, Opal, Tanzanite, 18k Gold
2010s American Loose Gemstones
Opal
20th Century Clip-on Earrings
Opal, 14k Gold, Yellow Gold
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary More Jewelry
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, 18k Gold, Gold, Yellow Gold
Antique 1890s Art Nouveau Pendant Necklaces
Opal, Pearl, Sapphire, 18k Gold, Yellow Gold
21st Century and Contemporary American Pendant Necklaces
Diamond, Opal, Platinum
21st Century and Contemporary North American Pendant Necklaces
Diamond, Opal, Platinum
2010s North American Drop Earrings
Diamond, Opal, Yellow Gold
21st Century and Contemporary American Cocktail Rings
Diamond, Opal, Platinum
21st Century and Contemporary American Cocktail Rings
Diamond, Opal, Platinum
2010s Dutch Artisan Pendant Necklaces
Opal, Peridot, 18k Gold
2010s Dutch Artisan Pendant Necklaces
Amethyst, Opal, 18k Gold
21st Century and Contemporary American Pendant Necklaces
Diamond, Opal, Platinum
Vintage 1970s American Retro Pendant Necklaces
Diamond, Opal, 14k Gold, Yellow Gold, Gold
2010s Dutch Artisan Pendant Necklaces
Diamond, Opal, 18k Gold
2010s German Arts and Crafts Cocktail Rings
Opal, Yellow Gold, 18k Gold, Gold
2010s Thai Artisan Dangle Earrings
Opal, Tanzanite, Tsavorite, White Gold
2010s Australian Contemporary Pendant Necklaces
Opal, Silver
2010s Australian Contemporary Pendant Necklaces
Opal, Silver
2010s Dutch Artisan Pendant Necklaces
Opal, Diamond, 18k Gold
21st Century and Contemporary American Fashion Rings
Diamond, Opal, Platinum
2010s Australian Loose Gemstones
Opal, Black Opal
2010s Contemporary Cluster Rings
Diamond, Opal, 18k Gold
21st Century and Contemporary Italian Contemporary Dangle Earrings
Opal, Gold, 18k Gold, Rose Gold
2010s Unknown Artist Pendant Necklaces
Diamond, Opal, 18k Gold
2010s Australian Dangle Earrings
Opal, 18k Gold
21st Century and Contemporary Australian Pendant Necklaces
Diamond, Opal, Black Opal, 18k Gold
21st Century and Contemporary American Artisan More Rings
Opal, 18k Gold, 22k Gold
2010s Thai Contemporary Pendant Necklaces
Opal, Silver
2010s French Artisan Pendant Necklaces
Opal, Silver, Sterling Silver
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary American Modern Lever-Back Earrings
Amethyst, Citrine, Opal, Peridot, Silver, Copper
Antique 15th Century and Earlier Australian Pendant Necklaces
Opal
2010s German Artist Pendant Necklaces
Opal, Silver
Late 20th Century Australian Brooches
Diamond, Opal, Black Opal, Emerald, 18k Gold
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Boulder Opals For Sale on 1stDibs
How Much are Boulder Opals?
- 1stDibs ExpertAugust 17, 2021An Australian boulder opal is an opal mined from a large ironstone boulder under the ground. This type of opal is the second most valuable opal behind the black opal. Spot an Australian boulder opal by checking for a solid layer of brown ironstone left on the back of the stone. Shop Australian boulder opals on 1stDibs.