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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 #: 20207038
Solid Boulder Opal Ring
$86.36 AUD (tax free)

ID #: 20206918
Solid Boulder Opal Ring
$113.64 AUD (tax free)

ID #: 20206826
Solid Black Opal Ring
$259.09 AUD (tax free)

ID #: 20206956
Solid Black Opal Ring
$290.91 AUD (tax free)

ID #: 20206901
Solid Boulder Opal Ring
$104.55 AUD (tax free)

ID #: 20206871
Solid Boulder Opal Ring
$122.73 AUD (tax free)

ID #: 20206857
Solid Boulder Opal Ring
$113.64 AUD (tax free)

ID #: 20206884
Solid Boulder Opal Ring
$113.64 AUD (tax free)

ID #: 20206970
Solid Boulder Opal Ring
$131.82 AUD (tax free)

SOLD
ID #: 20203733
Solid Boulder Opal Pendant
$631.82 AUD (tax free)

ID #: 20206888
Solid Boulder Opal Ring
$113.64 AUD (tax free)

ID #: 20206895
Solid Boulder Opal Ring
$86.36 AUD (tax free)

ID #: 20207014
Solid Boulder Opal Ring
$131.82 AUD (tax free)

ID #: 20206925
Solid Boulder Opal Ring
$131.82 AUD (tax free)

SOLD
ID #: 20206819
Solid Boulder Opal Ring
$268.18 AUD (tax free)