• 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
6.79 ct Exquisite Fancy (20.96 x 8.99mm) Natural Australian Boulder Opal 6.79 ct Exquisite Fancy (20.96 x 8.99mm) Natural Australian Boulder Opal
6.79 ct Exquisite Fancy (20.96 x 8.99mm) Natural Australian Boulder Opal
$90.99 $54.60 USD
6.80 ct Fancy (25.68 x 10.62mm) 100% Natural Australian Boulder Opal 6.80 ct Fancy (25.68 x 10.62mm) 100% Natural Australian Boulder Opal
6.80 ct Fancy (25.68 x 10.62mm) 100% Natural Australian Boulder Opal
$90.99 $54.60 USD
6.28 ct Fancy (16.00 x 9.27mm) Natural Australian Koroit Boulder Opal 6.28 ct Fancy (16.00 x 9.27mm) Natural Australian Koroit Boulder Opal
6.28 ct Fancy (16.00 x 9.27mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
6.34 ct Spectacular Fancy (19.20 x 8.30mm) Natural Australian Boulder Opal 6.34 ct Spectacular Fancy (19.20 x 8.30mm) Natural Australian Boulder Opal
6.34 ct Spectacular Fancy (19.20 x 8.30mm) Natural Australian Boulder Opal
$90.99 $54.60 USD
5.20 ct Fancy (16.37 x 13.57mm) Natural Australian Koroit Boulder Opal 5.20 ct Fancy (16.37 x 13.57mm) Natural Australian Koroit Boulder Opal
5.20 ct Fancy (16.37 x 13.57mm) Natural Australian Koroit Boulder Opal
$77.99 $46.80 USD
4.74 ct Exquisite Fancy (18.93 x 10.50mm) Natural Australian Boulder Opal 4.74 ct Exquisite Fancy (18.93 x 10.50mm) Natural Australian Boulder Opal
4.74 ct Exquisite Fancy (18.93 x 10.50mm) Natural Australian Boulder Opal
$90.99 $54.60 USD
12.73 ct Fancy (31.83 x 16.55mm) Natural Australian Koroit Boulder Opal 12.73 ct Fancy (31.83 x 16.55mm) Natural Australian Koroit Boulder Opal
12.73 ct Fancy (31.83 x 16.55mm) Natural Australian Koroit Boulder Opal
$90.99 $54.60 USD
3.34 ct Fancy (13.52 x 11.37 mm) Natural Australia Boulder Matrix Opal 3.34 ct Fancy (13.52 x 11.37 mm) Natural Australia Boulder Matrix Opal
3.34 ct Fancy (13.52 x 11.37 mm) Natural Australia Boulder Matrix Opal
$90.99 $54.60 USD
2.04 ct Fair Fancy (17.82 x 7.73 mm) Natural Australia Boulder Matrix Opal
2.04 ct Fair Fancy (17.82 x 7.73 mm) Natural Australia Boulder Matrix Opal
$77.99 $46.80 USD
2.54 ct Fancy (19.42 x 9.77 mm) 100% Natural Australia Boulder Matrix Opal
2.54 ct Fancy (19.42 x 9.77 mm) 100% Natural Australia Boulder Matrix Opal
$77.99 $46.80 USD
3.50 ct Fancy (14.50 x 13.48 mm) Natural Australia Boulder Matrix Opal
3.50 ct Fancy (14.50 x 13.48 mm) Natural Australia Boulder Matrix Opal
$90.99 $54.60 USD
2.67 ct Fancy (17.86 x 9.31 mm) Natural Australia Boulder Matrix Opal
2.67 ct Fancy (17.86 x 9.31 mm) Natural Australia Boulder Matrix Opal
$77.99 $46.80 USD
5.49 ct Fancy (20.89 x 11.20mm) 100% Natural Australia Boulder Matrix Opal
5.49 ct Fancy (20.89 x 11.20mm) 100% Natural Australia Boulder Matrix Opal
$90.99 $54.60 USD
4.26 ct Fancy (16.26 x 12.97 mm) Natural Australia Boulder Matrix Opal
4.26 ct Fancy (16.26 x 12.97 mm) Natural Australia Boulder Matrix Opal
$90.99 $54.60 USD

Our collections

Tourmaline

Explore

Tanzanite

Explore

Opal

Explore
All Gemstone