Boulder Opals Oval
21st Century and Contemporary Pendant Necklaces
White Diamond, Opal, White Gold
21st Century and Contemporary Pendant Necklaces
Opal, Yellow Gold
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary Pendant Necklaces
Opal, Gold, 14k Gold, Yellow Gold
21st Century and Contemporary Italian Contemporary Pendant Necklaces
Opal, 18k Gold, Rose Gold
2010s French Aesthetic Movement Drop Necklaces
Opal, Gold, 14k Gold
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, 18k Gold, Gold, Yellow Gold
Antique 15th Century and Earlier Australian Pendant Necklaces
Opal
2010s German Art Deco Cocktail Rings
Opal, Silver
Vintage 1940s North American Retro Pendant Necklaces
Opal, 14k Gold
21st Century and Contemporary American Fashion Rings
Diamond, Opal, Platinum
2010s Australian Loose Gemstones
Opal
2010s French Artisan Fashion Rings
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 Dangle Earrings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary American Pendant Necklaces
Diamond, Opal, Platinum
2010s Thai Contemporary Pendant Necklaces
Garnet, Opal, Tsavorite, Silver
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
21st Century and Contemporary Italian Contemporary Dangle Earrings
Opal, 18k Gold, Rose Gold
21st Century and Contemporary Italian Contemporary Dangle Earrings
Opal, 18k Gold, Yellow 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 Balinese Contemporary Cocktail Rings
Opal, 18k Gold
2010s Artist Choker Necklaces
Diamond, Opal, 18k Gold
2010s German Artisan Pendant Necklaces
Opal, Silver
2010s German Artist Cocktail Rings
Opal, Gold Plate, Silver, 18k Gold
Late 20th Century Japanese Cocktail Rings
Diamond, Opal, Platinum
Antique 15th Century and Earlier Australian Pendant Necklaces
Opal
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Rose Gold
Antique 1890s Victorian Engagement Rings
Opal, Gold, 10k Gold, Yellow Gold
Vintage 1970s American Art Deco Brooches
Diamond, Opal, Black Opal, Yellow Gold
2010s Australian Art Deco Cocktail Rings
Diamond, Opal, 14k Gold, Yellow Gold
Vintage 1950s Australian Retro Clip-on Earrings
Opal, Yellow Gold
2010s Australian Loose Gemstones
Opal, Black Opal
2010s French Art Nouveau Dangle Earrings
Opal, 18k Gold, Yellow Gold, Silver, Sterling Silver
2010s German Artist Pendant Necklaces
Opal, Gold Plate, Silver, 18k Gold
21st Century and Contemporary Central American Art Deco Pendant Necklaces
Opal, Sterling Silver
21st Century and Contemporary Italian Contemporary Cocktail Rings
Opal, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Cocktail Rings
Diamond, Emerald, Opal, 18k Gold, White Gold
21st Century and Contemporary American Fashion Rings
Diamond, Opal, 18k Gold, White Gold
Antique Early 1900s Victorian Brooches
Opal, Gold, 14k Gold, Yellow Gold
2010s Australian Loose Gemstones
Opal
2010s Australian Loose Gemstones
Opal
2010s German Artisan Cocktail Rings
Opal, Silver
21st Century and Contemporary Brooches
Diamond, Opal, Platinum
21st Century and Contemporary Balinese Contemporary Pendant Necklaces
Opal, 18k Gold
2010s Contemporary Cuff Bracelets
Aquamarine, Opal, 18k Gold, Yellow Gold, Gold
2010s Hong Kong Artisan Engagement Rings
Opal, Gold, 14k Gold, Yellow Gold
Vintage 1970s American Art Deco Brooches
Diamond, Opal, 18k Gold, Yellow Gold
2010s Australian Loose Gemstones
Opal
2010s Australian Loose Gemstones
Opal
2010s Hong Kong Artisan Engagement Rings
Opal, Gold, 14k Gold, Yellow Gold
2010s Thai Edwardian Pendant Necklaces
Yellow Diamond, Opal, Sapphire, Gold
Vintage 1970s German Drop Necklaces
Diamond, Opal, Sapphire, 18k Gold, Yellow Gold, 14k Gold
2010s French Aesthetic Movement Drop Necklaces
Opal, Gold, 14k Gold
2010s Australian Loose Gemstones
Opal
Vintage 1970s American Art Deco Brooches
Crystal, Diamond, Opal, Yellow Gold
2010s Contemporary Dangle Earrings
Diamond, Multi-gemstone, Opal, Tsavorite, Gold, 18k Gold, Yellow Gold
21st Century and Contemporary American Modern Dangle Earrings
Tourmaline, Blue Sapphire, Opal, Diamond, Coral, Yellow Gold, 18k Gold
21st Century and Contemporary American Modern Fashion Rings
Diamond, Opal, 14k Gold, Yellow Gold
- 1
Boulder Opals Oval For Sale on 1stDibs
How Much is a Boulder Opals Oval?
- 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.