Vintage Boulder Opal
Late 20th Century Contemporary Vintage Boulder Opal
Diamond, Opal, 18k Gold
1980s Vintage Boulder Opal
Opal, 18k Gold, Yellow Gold
20th Century Vintage Boulder Opal
Diamond, Opal, 18k Gold, Yellow Gold
20th Century Vintage Boulder Opal
Opal, 14k Gold, Yellow Gold
1970s American Retro Vintage Boulder Opal
Diamond, Opal, Gold, 14k Gold, Yellow Gold
Late 20th Century Australian Vintage Boulder Opal
Opal, Emerald, Black Opal, Diamond, 18k Gold
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, 18k Gold
20th Century Vintage Boulder Opal
Diamond, White Diamond, Opal, 18k Gold, Yellow Gold
Late 20th Century Japanese Vintage Boulder Opal
Diamond, Opal, Platinum
Late 20th Century Australian Art Deco Vintage Boulder Opal
Diamond, Opal, Black Opal, Platinum, 18k Gold
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, Black Opal, 18k Gold, Platinum
1970s German Vintage Boulder Opal
Diamond, Opal, Sapphire, 18k Gold, Yellow Gold, 14k Gold
1990s American Vintage Boulder Opal
Pearl, Opal, 22k Gold, Sterling Silver, 18k Gold
Mid-20th Century Unknown Modern Vintage Boulder Opal
Opal, Zircon, Gold, 18k Gold, Yellow Gold
Late 20th Century Australian Contemporary Vintage Boulder Opal
Diamond, Opal, 18k Gold, Yellow Gold, Platinum
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, 18k Gold, Platinum
1990s Australian Vintage Boulder Opal
Diamond, Opal, 18k Gold, Platinum
Late 20th Century Modern Vintage Boulder Opal
Diamond, Opal, Pink Sapphire, Platinum
1980s Australian Vintage Boulder Opal
Opal
20th Century Vintage Boulder Opal
White Diamond, Opal, Gold, 18k Gold, Platinum
1970s American Art Deco Vintage Boulder Opal
Opal, Yellow Gold
Late 20th Century Unknown Vintage Boulder Opal
Opal, Sapphire, Sterling Silver
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, Black Opal, 18k Gold, Platinum
Mid-20th Century Unknown Modern Vintage Boulder Opal
Opal, 14k Gold, Yellow Gold
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, 18k Gold
1990s Australian Modern Vintage Boulder Opal
Diamond, Opal, White Gold, 18k Gold
1940s North American Retro Vintage Boulder Opal
Opal, 14k Gold
1990s American Vintage Boulder Opal
Diamond, Opal, Yellow Gold, Platinum
20th Century Neoclassical Vintage Boulder Opal
Opal, Gold, 18k Gold, Yellow Gold
Late 20th Century Australian Vintage Boulder Opal
Diamond, Opal, Platinum, 18k Gold
1990s Australian Romantic Vintage Boulder Opal
Opal, 18k Gold, Yellow Gold
20th Century Japanese Modern Vintage Boulder Opal
Diamond, Opal, Platinum
1980s Unknown Modern Vintage Boulder Opal
Diamond, Opal, Gold, 9k Gold, Yellow Gold
1970s American Art Deco Vintage Boulder Opal
Opal, 18k Gold, Yellow Gold
1980s Unknown Retro Vintage Boulder Opal
Diamond, Opal, Gold, White Gold
1970s American Art Deco Vintage Boulder Opal
Diamond, Opal, 18k Gold, Yellow Gold
1970s American Art Deco Vintage Boulder Opal
Diamond, Opal, Black Opal, Yellow Gold
1970s American Art Deco Vintage Boulder Opal
Diamond, Opal, Sapphire, Yellow Gold, 18k Gold
Late 20th Century Unknown Modern Vintage Boulder Opal
Diamond, Aquamarine, Opal, 14k Gold, 18k Gold, Yellow Gold, White Gold
1950s Australian Retro Vintage Boulder Opal
Opal, Yellow Gold
Late 20th Century American Aesthetic Movement Vintage Boulder Opal
Opal, Tsavorite, Druzy, 18k Gold, Yellow Gold, Gold, 14k Gold
20th Century Vintage Boulder Opal
Amethyst, Opal, Pearl, Tsavorite, 18k Gold, 22k Gold, Rose Gold, Yellow ...
20th Century British Modernist Vintage Boulder Opal
Diamond, Opal, Gold, 18k Gold, White Gold
1970s Vintage Boulder Opal
Diamond, Opal, 18k Gold, Yellow Gold
1970s Vintage Boulder Opal
18k Gold, Yellow Gold
1970s Unknown Vintage Boulder Opal
Diamond, Opal, 18k Gold, Yellow Gold
1980s German Modern Vintage Boulder Opal
Diamond, Opal, White Gold
1990s American Vintage Boulder Opal
Sterling Silver
Late 20th Century Vintage Boulder Opal
Diamond, Opal, Black Opal, Gold, 14k Gold
1990s American Vintage Boulder Opal
Jasper, Sterling Silver
1990s American Vintage Boulder Opal
Citrine, Sterling Silver
1980s American Vintage Boulder Opal
Quartz, Sterling Silver
1990s American Vintage Boulder Opal
Sterling Silver, Bronze
1990s American Vintage Boulder Opal
Sterling Silver
1990s American Vintage Boulder Opal
Citrine, Base Metal
1990s American Vintage Boulder Opal
Quartz, Sterling Silver
1990s American Vintage Boulder Opal
Quartz, Sterling Silver
1990s American Vintage Boulder Opal
Sterling Silver
1970s American Art Deco Vintage Boulder Opal
Crystal, Diamond, Opal, Yellow Gold
1970s American Art Deco Vintage Boulder Opal
Opal, Black Opal, 18k Gold, Yellow Gold
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Vintage Boulder Opal For Sale on 1stDibs
How Much is a Vintage Boulder Opal?
- 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.