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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 #: 20216153
Solid White Opal Ring
$118.18 AUD (tax free)

SOLD
ID #: 10102019
Solid Black Opal Ring
$1,754.55 AUD (tax free)

ID #: 20216146
Solid White Opal Ring
$300.00 AUD (tax free)

ID #: 20216160
Solid Crystal Opal Ring
$2,090.91 AUD (tax free)

ID #: 20214685
Solid Boulder Opal Ring
$522.73 AUD (tax free)

ID #: 20214692
Solid Black Opal Ring
$609.09 AUD (tax free)

SOLD
ID #: 20214708
Solid Black Opal Ring
$445.45 AUD (tax free)

ID #: 20215880
Solid Boulder Opal Pendant
$3,627.27 AUD (tax free)

ID #: 20215941
Solid Boulder Opal Pendant
$1,781.82 AUD (tax free)

SOLD
ID #: 20216023
Solid White Opal
$240.91 AUD (tax free)

SOLD
ID #: 20215972
Solid Boulder Opal Pendant
$1,354.55 AUD (tax free)

ID #: 20215965
Solid Boulder Opal Pendant
$1,604.55 AUD (tax free)

SOLD
ID #: 20215989
Solid Boulder Opal Pendant
$904.55 AUD (tax free)

ID #: 20216009
Solid Boulder Opal Pendant
$1,450.00 AUD (tax free)

ID #: 20215897
Solid Boulder Opal Pendant
$2,000.00 AUD (tax free)