Fantastic Black Opal Rubs lot from Lightning Ridge.
There are 12 pieces in total, weighing 45 cts.
It's up to you to finish these stones the way you want them.
ABSOLUTELY STUNNING BLACK OPALS
ORIGIN: LIGHTNING RIDGE, AUSTRALIA.
Weight: 45 CARATS
Dimensions vary between : 10mm x 7.3 mm x 3.5 mm and 18.5 x 15.5 x 3.5 mm