This is a very fine solid crystal opal from Lightning Ridge, Australia.  It has intense color patches in red, orange, green, blue and golden yellow.  All colors float on a translucent base.  It weighs 9.86cts.  It has a high dome, with a fine polish.

Surrounding the center are hand selected marquise and round brilliant cut diamonds.  They have a total weight of 3.76cts.  They are matched, G-H in color and VS1 to SI1 in clarity.

The mounting was hand created using the lost wax method.  It is unique, and created just for this opal.  It is suspended from an 18" 14k chain.