Antique Boulder Opal
1910s Australian Edwardian Antique Boulder Opal
Opal, 15k Gold
1890s Art Nouveau Antique Boulder Opal
Opal, Pearl, Sapphire, 18k Gold, Yellow Gold
15th Century and Earlier Australian Antique Boulder Opal
Opal
Mid-19th Century Victorian Antique Boulder Opal
Opal, Gold, Yellow Gold, 14k Gold
15th Century and Earlier Australian Antique Boulder Opal
Opal
15th Century and Earlier Australian Antique Boulder Opal
Opal
15th Century and Earlier Australian Antique Boulder Opal
Opal
15th Century and Earlier Australian Antique Boulder Opal
Opal
Early 1900s Victorian Antique Boulder Opal
Opal, Gold, 14k Gold, Yellow Gold
1910s Art Nouveau Antique Boulder Opal
Diamond, Opal, Gold, 10k Gold, Rose Gold
1890s Victorian Antique Boulder Opal
Opal, Gold, 10k Gold, Yellow Gold
15th Century and Earlier Ethiopian Antique Boulder Opal
Opal
1880s English Victorian Antique Boulder Opal
Opal, White Diamond, Diamond, Silver, Yellow Gold, 14k Gold, Gold
People Also Browsed
1980s Australian Modern Antique Boulder Opal
Diamond, Opal, 14k Gold
Early 20th Century French Belle Époque Antique Boulder Opal
Diamond, Platinum
2010s Australian Artisan Antique Boulder Opal
Opal
Early 20th Century American Art Nouveau Antique Boulder Opal
Diamond, Opal, Black Opal, 18k Gold, Enamel, Yellow Gold
1770s Portuguese Georgian Antique Boulder Opal
Quartz, Rock Crystal, Silver
Early 1900s Art Nouveau Antique Boulder Opal
Diamond, White Diamond, Garnet, Gold, 14k Gold, Yellow Gold
1890s Victorian Antique Boulder Opal
Gold, 18k Gold, Yellow Gold, Enamel
21st Century and Contemporary Australian Antique Boulder Opal
Opal, Black Opal
20th Century Antique Boulder Opal
Ruby, Silver
1880s Victorian Antique Boulder Opal
Diamond, White Diamond, Emerald, Ruby, Gold, 14k Gold, Yellow Gold, Enamel
Late 18th Century Unknown Georgian Antique Boulder Opal
18k Gold, Yellow Gold
2010s Australian Antique Boulder Opal
Black Opal
1910s American Antique Boulder Opal
Diamond, Natural Pearl, Platinum
Early 1900s English Edwardian Antique Boulder Opal
Opal, Pearl, Gold
Early 1900s Art Nouveau Antique Boulder Opal
Diamond, White Diamond, Enamel, Gold, 18k Gold, Yellow Gold
1880s Art Nouveau Antique Boulder Opal
Diamond, White Diamond, Sapphire, Gold, 14k Gold, Yellow Gold, Silver
Recent Sales
1860s British Early Victorian Antique Boulder Opal
Diamond, Opal, 14k Gold
17th Century Australian Artisan Antique Boulder Opal
Jade, Cultured Pearl, Quartz, Tiger's Eye, Other, Agate, Amber, Carnelia...
Early 20th Century Modern Antique Boulder Opal
Opal, 18k Gold
1890s Unknown Victorian Antique Boulder Opal
Opal, 18k Gold
Early 1900s Victorian Antique Boulder Opal
Opal, Gold, 14k Gold, Yellow Gold
Late 19th Century British Art Nouveau Antique Boulder Opal
Opal, 18k Gold
Early 1900s Victorian Antique Boulder Opal
Emerald, Opal, Ruby, Blue Sapphire, Gold, 14k Gold, Yellow Gold, Platinum
1910s Unknown Edwardian Antique Boulder Opal
Opal, 18k Gold, Yellow Gold
1910s Arts and Crafts Antique Boulder Opal
Opal, 14k Gold, Yellow Gold
1910s Edwardian Antique Boulder Opal
Opal, Gold
Late 19th Century American Victorian Antique Boulder Opal
Opal, 14k Gold
15th Century and Earlier American Antique Boulder Opal
Diamond, Opal, 18k Gold
Early 1900s Edwardian Antique Boulder Opal
Opal, 14k Gold, Yellow Gold
1890s Unknown Victorian Antique Boulder Opal
Diamond, Opal, 14k Gold
1850s Unknown Early Victorian Antique Boulder Opal
Diamond, Opal, 9k Gold
Early 1900s British Arts and Crafts Antique Boulder Opal
Opal, 18k Gold
1890s Unknown Victorian Antique Boulder Opal
Opal, 18k Gold, Silver, Cut Steel
1890s American Art Nouveau Antique Boulder Opal
Black Opal, Opal, Yellow Gold, 14k Gold, Gold
Late 19th Century Unknown Victorian Antique Boulder Opal
Diamond, Opal, Pearl, 14k Gold
Early 1900s American Arts and Crafts Antique Boulder Opal
Diamond, Garnet, Opal, Ruby, 14k Gold
Antique Boulder Opal For Sale on 1stDibs
How Much is a Antique 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.