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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 #: 20190972
Solid White Opal
$254.55 AUD (tax free)

ID #: 20191375
Solid Black Opal
$359.09 AUD (tax free)

ID #: 20190354
Doublet Opal Watch
$262.73 AUD (tax free)

ID #: 20190361
Doublet Opal Watch
$217.27 AUD (tax free)

ID #: 20177430
Doublet Opal Watch
$235.45 AUD (tax free)

ID #: 20191368
Solid Boulder Opal
$2,363.64 AUD (tax free)

ID #: 20186999
Doublet Opal Earrings
$718.18 AUD (tax free)

SOLD
ID #: 20191269
Doublet Opal Earrings
$127.27 AUD (tax free)

ID #: 20191290
Doublet Opal Earrings
$331.82 AUD (tax free)

ID #: 20187248
Doublet Opal Earrings
$359.09 AUD (tax free)

ID #: 20190996
Solid White Opal
$527.27 AUD (tax free)

ID #: 20191047
Solid White Opal
$763.64 AUD (tax free)

ID #: 20190958
Solid Crystal Opal
$472.73 AUD (tax free)

SOLD
ID #: 20163327
Solid Crystal Opal
$145.45 AUD (tax free)

ID #: 20190941
Solid White Opal
$177.27 AUD (tax free)