• Filters

    Filter by

    Availability
    Price
    $
    $
    Gem Size Depth ( d )
    Weight
    Hardness
    Treatment
    Origin
    Luster
    Clarity
    Gem Size Width ( w )
    Gem Size Length ( l )
    Shape
    Grade
    Color
    Clear all
399 products
28.09 ct Fancy Cabochon (27.71 x 19.54mm) Australian Koroit Boulder Opal
28.09 ct Fancy Cabochon (27.71 x 19.54mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
20.14 ct Fancy Cabochon (26.11 x 12.72mm) Australian Koroit Boulder Opal
20.14 ct Fancy Cabochon (26.11 x 12.72mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
34.68 ct Fancy Cabochon (27.26 x 21.12mm) Australian Koroit Boulder Opal
34.68 ct Fancy Cabochon (27.26 x 21.12mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
17.11 ct Fancy Cabochon (25.65 x 14.63mm) Australian Koroit Boulder Opal
17.11 ct Fancy Cabochon (25.65 x 14.63mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
31.82 ct Fancy Cabochon (25.32 x 17.78mm) Australian Koroit Boulder Opal
31.82 ct Fancy Cabochon (25.32 x 17.78mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
37.91 ct Fancy Cabochon (23.26 x 23.95mm) Australian Koroit Boulder Opal
37.91 ct Fancy Cabochon (23.26 x 23.95mm) Australian Koroit Boulder Opal
Regular price $64.99 USD
25.28 ct Fancy Cabochon (30.15 x 19.59mm) Australian Koroit Boulder Opal
25.28 ct Fancy Cabochon (30.15 x 19.59mm) Australian Koroit Boulder Opal
Regular price $64.99 USD