Loose Solid Black Opals
 
In the world of gemstones, black opals are one of the most magnificent and brilliant gemstones. Black opals have been the center of attention throughout history, good and bad.
 
Of all the opals, black opals are the most expensive and prized, great play of red being the most valuable, and rightly so, as the dark color of the stone enhances opal's unique play of colors that are unmatched by any other gemstones. The most valued and sought after black opal are those with the harlequin pattern and good play of red.
 
The spectacular play of colors from black opals comes from the inpurity of the gemstone. Magnesium oxides within the gem causes the stone to flash of red, blue, and green.
 
Because quality black opals are usually only found in Southern Australia from Lightning Ridge, the world market supply of black opals are extremely limited, with only a few found per year and becoming scarcer every year. Thus, quality precious black opals are more valuable and expensive than diamonds, a single carat of high quality precious Black opal can go well above $8,000 USD.
 
With increasing prices and low quality supplies, many collectors and investors are turning their attentions to Koroit and Yowah nut boulders from Queensland, Australia.
 
In gem therapy, loose black opals are also known to improve reproductive organs, spleen, pancreas, filters red corpuscles, aids white corpuscles, bone marrow, and depression, especially of sexual origin.
10CT 100% Natural Australian Black Boulder Cab Opal Collection B208031

10CT 100% Natural Australian Black Boulder Cab Opal Collection B208031

PayPal 1 $4.99 47m
15.5CT 100% Natural Australian Black Boulder Cab Opal Collection B207987

15.5CT 100% Natural Australian Black Boulder Cab Opal Collection B207987

PayPal - $4.99 1h 22m
Lightning Ridge Black Opal Rub with Electric Blue Flash

Lightning Ridge Black Opal Rub with Electric Blue Flash

PayPal 3 $11.05 1h 32m
NATURAL ETHIOPIAN BLACK OPAL 8.45CT. 4PC MIX SHAPE LOT RAINBOW FLASHING FIRE

NATURAL ETHIOPIAN BLACK OPAL 8.45CT. 4PC MIX SHAPE LOT RAINBOW FLASHING FIRE

PayPal - $84.00 1h 35m
Lightning Ridge Black Opal Rub with Blue Green Flash

Lightning Ridge Black Opal Rub with Blue Green Flash

PayPal - $15.00 1h 35m
Lightning Ridge Black Opal Rub with Blue Green Flash

Lightning Ridge Black Opal Rub with Blue Green Flash

PayPal 2 $12.00 1h 38m
Lightning Ridge Black Opal Rub with Electric Blue Flash

Lightning Ridge Black Opal Rub with Electric Blue Flash

PayPal - $12.00 1h 41m
Lightning Ridge Black Opal Rub with Blue Green Flash

Lightning Ridge Black Opal Rub with Blue Green Flash

PayPal 1 $12.00 1h 45m
Lightning Ridge Black Opal Rub with Blue Green Flash

Lightning Ridge Black Opal Rub with Blue Green Flash

PayPal - $27.00 1h 48m
Lightning Ridge Black Opal Rub with Multi Color Flash

Lightning Ridge Black Opal Rub with Multi Color Flash

PayPal - $30.00 1h 51m
16.5CT 100% Natural Australian Black Boulder Cab Opal Collection B208048

16.5CT 100% Natural Australian Black Boulder Cab Opal Collection B208048

PayPal - $4.99 1h 52m
Lightning Ridge Black Opal Rub with Multi Color Flash

Lightning Ridge Black Opal Rub with Multi Color Flash

PayPal - $30.00 1h 54m
16.6CT 100% Natural Australian Black Boulder Opal B243723

16.6CT 100% Natural Australian Black Boulder Opal B243723

PayPal - $2.99 1h 57m
5 5 flagstone pattern blue green GEM black opal solid Lightning Ridge 1.93 cts

5 5 flagstone pattern blue green GEM black opal solid Lightning Ridge 1.93 cts

PayPal - $250.00 2h 2m
980 CTS 24 PCS UNTREATED BEAUTIFUL NATURAL DENDRITE OPALS WHOLESALE GEMSTONES

980 CTS 24 PCS UNTREATED BEAUTIFUL NATURAL DENDRITE OPALS WHOLESALE GEMSTONES

PayPal - $39.99 2h 8m
14.05ct SEMI BLACK BASE N7 VEIN OPAL ROUGH 24x10mm

14.05ct SEMI BLACK BASE N7 VEIN OPAL ROUGH 24x10mm

PayPal -
$19.99
$32.00
2h 13m
18.1CT 100% Natural Australian Black Boulder Opal BA1420

18.1CT 100% Natural Australian Black Boulder Opal BA1420

PayPal 1 $2.99 2h 51m
 Natural Ethiopian Welo Black Opal 18 ct  Cabochon Fire Gemstone #754

Natural Ethiopian Welo Black Opal 18 ct Cabochon Fire Gemstone #754

PayPal - $370.00 3h 39m
Solid 3.785(ct) Lightning Ridge Black Opal   Elegant Blue Beauty (SSO)

Solid 3.785(ct) Lightning Ridge Black Opal Elegant Blue Beauty (SSO)

PayPal - $975.00 3h 41m
Solid Natural ETHIOPIAN WELO BLACK OPAL 22 CT Bright Fire Gemstone E261

Solid Natural ETHIOPIAN WELO BLACK OPAL 22 CT Bright Fire Gemstone E261

PayPal - $497.00 3h 48m