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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (70): Black Opal Clear All
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ID: 3326741 pcs
4.10ct Black Opal
14.30mm x 12.72mm x 6.06mm
USD 164.00
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ID: 3298154 pcs
5.72ctw Black Opal
9.10mm x 7.09mm x 4.59mm
USD 228.80
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ID: 3302511 pcs
5.70ct Black Opal
16.84mm x 12.22mm x 6.75mm
USD 228.00
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ID: 3297062 pcs
3.03ctw Black Opal
9.03mm x 7.04mm x 4.68mm
USD 121.20
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ID: 3175901 pcs
4.27ct Black Opal
15.29mm x 9.53mm x 5.11mm
USD 170.80
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ID: 3291364 pcs
4.29ctw Black Opal
8.16mm x 6.17mm x 4.39mm
USD 171.60
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ID: 3298005 pcs
2.55ctw Black Opal
7.03mm x 5.06mm x 3.03mm
USD 102.00
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ID: 3297985 pcs
2.36ctw Black Opal
6.95mm x 5.01mm x 2.80mm
USD 94.40
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ID: 3298045 pcs
2.65ctw Black Opal
6.98mm x 5.00mm x 3.16mm
USD 106.00
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ID: 3243951 pcs
1.72ct Black Opal
11.55mm x 8.17mm x 4.66mm
USD 68.80
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ID: 3730701 pcs
5.59ct Black Opal
19.68mm x 10.27mm x 6.49mm
USD 223.60
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ID: 3529651 pcs
2.56ct Black Opal
11.02mm x 10.49mm x 5.06mm
USD 102.40
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ID: 3237121 pcs
4.34ct Black Opal
15.39mm x 10.70mm x 6.15mm
USD 173.60
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ID: 3291324 pcs
2.31ctw Black Opal
6.95mm x 4.99mm x 3.33mm
USD 92.40
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ID: 3193891 pcs
5.56ct Black Opal
21.00mm x 9.49mm x 6.63mm
USD 222.40
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ID: 3295772 pcs
2.08ctw Black Opal
8.06mm x 6.13mm x 4.44mm
USD 83.20
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ID: 3297894 pcs
2.69ctw Black Opal
6.98mm x 5.04mm x 3.64mm
USD 107.60
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ID: 3175861 pcs
4.22ct Black Opal
17.53mm x 9.63mm x 5.90mm
USD 168.80
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ID: 3291354 pcs
4.01ctw Black Opal
8.07mm x 6.08mm x 4.28mm
USD 160.40
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ID: 3296142 pcs
1.30ctw Black Opal
7.06mm x 4.98mm x 3.47mm
USD 52.00
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ID: 3302911 pcs
4.11ct Black Opal
16.69mm x 10.84mm x 5.27mm
USD 164.40
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Black Opal
Black opal is considered the most valuable of opal varieties. Black opal contains traces of iron oxide and carbon elements not found in other common opals. These combined elements give black opal the unique color properties it is famed for. Black opal is mainly found in Lightning Ridge of NSW, Australia. In 2008, New South Wales declared Black opal as its Official State Gemstone.

Ethiopia is also known to produce treated black opal. The Ethiopian black opal is treated with a smoking process that darkens the color of the opal. The treatment enhances the play of color, rivaling some of Lightning Ridge's opals. The treated Ethiopian black opal is a great value gem because it sells for much less than Australian black opal.

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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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