3 Pcs Medium BOULDER OPAL Cabochons – NOS

6 new boulder opal cabs, the longest of which is 12×8 mm,and smallest is 10×7 mm. They are all backed with the native brown stone layer under the opal, traditional. Opals and Turquoise listed so far.

17CT YOWAH Boulder MATRIX Opal Stone Kucina Opals for Jewelry Makers Gift

ORIGIN: YOWAH QUEENSLAND, AUSTRALIA. WEIGHT: 17ct(TOTAL). GEM TYPE: NATURAL BOULDER OPAL, NOT a doublet/triplet. Watch the opal videos on YouTube:@KucinaOpals. The seductive change in color and pattern that can be only seen by moving the stones in different light conditions, is only for the eye of the beholder.

Bright Gem Colors * 12ct Natural Australian Solid Matrix Boulder Opal * Video

This natural Australian solid matrix boulder opal has bright gem colors of red, orange, yellow, green, amber, violet, turquoise and blue. The colors fill the veins between the stone and flash and streak brilliantly with rotation of the opal. There is also excellent play of color. There are clay spots on the sides and a natural seam on the surface of the opal.