Indigo Wave Opal with Tanzanite + Topaz Fringe Necklace

This australian opal is spectacular. It doesn't display loads of flash, but it makes up for it with waves of indigo and periwinkle across the near black body color. I've set it in oxidized silver and added a fringe of tanzanite and blue topaz on 14k pins. The chain adjusts from 16 to 18 inches.