"Illusion" ring with exclusive black opals

Incredible mood to this amazing ring sets used in this the noble black opals. They shimmer in different colors, like night lights!
Dominated by blue, emerald and purple depending on viewing angle as there is red and orange zolotistye flash. UNFORTUNATELY THE PHOTO IS UNABLE TO CONVEY THE BEAUTY OF THE STONE!
The frame is made of 925 silver coated with 14 carat gold.
Black opal is an exceptionally beautiful gemstone, the most valuable variety of opal. Has an amazing, almost pure spectral color game. Two of the same ones do not exist: each has its own unique beauty.
Black opals are only called such, in fact they are often dominated by dark blue and green areas of the painting. Highly sought after gems with Golden and red color zones. The main advantage of black opal is a multicolored flash, which, like the lightnings sparkle on the surface. The brighter and richer this game of colors, the more expensive the stone.