Jewelry Item# Iro 27018k Gold Australian Crystal Opal and Diamond Cross Necklace$14,500.00PriceAdd to CartAustralian Opal & Natural Diamond Cross NecklaceAustralian Black Crystal Opal & Natural Diamond Gold Cross Necklace beautifully created by John Ternus • 18k white and yellow gold • 4.75ct Solid Oval Crystal Black Australian Opal • 4 Round natural diamonds .49ct tw