Displaying a gorgeously pronounced vein of multi-coloured brilliance, with flashes of incredible opal fire, this beautiful example of Queensland Boulder Opal, weighing at a generous 20.75 carats and measuring at 13.4 x 13.4 x 9.3mm, is like a beautiful painted canvas, perfectly complimented with a delicate 9ct yellow gold necklace. A superb and unique necklace!

Rectangular Queensland Boulder Opal & 9ct Yellow Gold Chain