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Semi-Black Opals

Also known as dark opal and grey opal, semi-black opal refers to opals which have a darker body tone than white opals, yet are not quite dark enough to be classified as black opals. The body tone of these stones falls in either the N5 or N6 category in the above tone chart diagram. Semi black opals are found mostly at Lightning Ridge, however they have also been found at Mintabie in South Australia. To give a rough idea, top quality semi-black opal can fetch prices up to $3,500 per carat.

Examples of Semi-Black Opal

Current black opal stock

Here's a sample of the latest black opals currently available in our Australian opal catalogue:

Shop the latest from our range of Opals


ID #: 20197896
Solid Boulder Opal
$359.09 AUD (tax free)

ID #: 20197902
Solid Boulder Opal
$1,613.64 AUD (tax free)

SOLD
ID #: 20197919
Solid Black Opal
$327.27 AUD (tax free)

ID #: 20197834
Solid Crystal Opal Pendant
$1,631.82 AUD (tax free)

ID #: 20188641
Solid Semi Black Opal
$400.00 AUD (tax free)

ID #: 20159115
Solid Crystal Opal Earrings
$1,472.73 AUD (tax free)

ID #: 20181710
Solid Boulder Opal Earrings
$722.73 AUD (tax free)

ID #: 20086015
Solid White Opal Earrings
$836.36 AUD (tax free)

ID #: 20091705
Solid Crystal Opal Earrings
$1,472.73 AUD (tax free)

SOLD
ID #: 20197827
Solid Crystal Opal Earrings
$931.82 AUD (tax free)

ID #: 20193553
Doublet Opal Pendant
$445.45 AUD (tax free)

ID #: 20191146x
Doublet Opal Pendant
$436.36 AUD (tax free)

ID #: 20197810
Solid Boulder Opal
$1,450.00 AUD (tax free)

ID #: 20197650
Solid Crystal Opal Ring
$5,136.36 AUD (tax free)

ID #: 20197605
Solid Boulder Opal
$1,163.64 AUD (tax free)