0.7ct Coober Pedy Opal & Natural Diamond Pendant Necklace ~ 'Golden Red Centre' | 9ct Australian Gold | Solid Australian OpalGolden Red Centre ~ This Coober Pedy opal and diamond pendant captures the raw beauty of the Australian outback in every flicker of light. Embrace the natural beauty of Australia with this stunning handcrafted 0. 7ct Solid Coober Pedy Opal and Natural Diamond, 9ct Solid Gold Pendant. Hand cut and hand set in genuine Australian 9ct solid Gold, this pendant features a small diamond along with an opal sourced from the renowned Coober Pedy opal fields.