• 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
1739 of 4578 products
4.33 ct Cabochon (17.32 x 13.93 mm) Natural Australian Koroit Boulder Opal
4.33 ct Cabochon (17.32 x 13.93 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
3.51 ct Cabochon (19.08 x 9.24 mm) Natural Australian Koroit Boulder Opal
3.51 ct Cabochon (19.08 x 9.24 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
6.26 ct Cabochon (14.48 x 12.38 mm) Natural Australian Koroit Boulder Opal
6.26 ct Cabochon (14.48 x 12.38 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
4.19 ct Cabochon (15.80 x 12.06 mm) Natural Australian Koroit Boulder Opal
4.19 ct Cabochon (15.80 x 12.06 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
4.16 ct Cabochon (23.00 x 8.88 mm) Natural Australian Koroit Boulder Opal
4.16 ct Cabochon (23.00 x 8.88 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
5.44 ct Cabochon (17.02 x 11.79 mm) Natural Australian Koroit Boulder Opal
5.44 ct Cabochon (17.02 x 11.79 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
6.20 ct Cabochon (23.40 x 8.91 mm) Natural Australian Koroit Boulder Opal
6.20 ct Cabochon (23.40 x 8.91 mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
3.67 ct Fancy (13.44 x 13.01mm) Natural Australian Koroit Boulder Opal 3.67 ct Fancy (13.44 x 13.01mm) Natural Australian Koroit Boulder Opal
3.67 ct Fancy (13.44 x 13.01mm) Natural Australian Koroit Boulder Opal
$77.99 $46.80 USD
4.94 ct Fancy (17.31 x 9.97mm) 100% Natural Australian Boulder Opal 4.94 ct Fancy (17.31 x 9.97mm) 100% Natural Australian Boulder Opal
4.94 ct Fancy (17.31 x 9.97mm) 100% Natural Australian Boulder Opal
$77.99 $46.80 USD
2.57 ct Stunning Fancy (13.85 x 7.68mm) Natural Australian Boulder Opal 2.57 ct Stunning Fancy (13.85 x 7.68mm) Natural Australian Boulder Opal
2.57 ct Stunning Fancy (13.85 x 7.68mm) Natural Australian Boulder Opal
$64.99 $39.00 USD
1.50 ct Fancy (14.58 x 6.40mm) Natural Australian Koroit Boulder Opal 1.50 ct Fancy (14.58 x 6.40mm) Natural Australian Koroit Boulder Opal
1.50 ct Fancy (14.58 x 6.40mm) Natural Australian Koroit Boulder Opal
$64.99 $39.00 USD
5.57 ct Fancy (16.37 x 11.71mm) Natural Australian Koroit Boulder Opal 5.57 ct Fancy (16.37 x 11.71mm) Natural Australian Koroit Boulder Opal
5.57 ct Fancy (16.37 x 11.71mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
3.72 ct Terrific Fancy (17.56 x 11.39mm) Natural Australian Boulder Opal 3.72 ct Terrific Fancy (17.56 x 11.39mm) Natural Australian Boulder Opal
3.72 ct Terrific Fancy (17.56 x 11.39mm) Natural Australian Boulder Opal
$77.99 $46.80 USD
5.86 ct Premium Fancy (19.29 x 9.51mm)Natural Australian Boulder Opal 5.86 ct Premium Fancy (19.29 x 9.51mm)Natural Australian Boulder Opal
5.86 ct Premium Fancy (19.29 x 9.51mm)Natural Australian Boulder Opal
$90.99 $54.60 USD

Our collections

Tourmaline

Explore

Tanzanite

Explore

Opal

Explore
All Gemstone