Gaze into this crystal opal for all the secrets of the universe, there's a different rainbow from every angle. Freeform crystal opal measures 17.5 x 11.5mm and is appx 7mm thick. It weighs 7.3 carats and has a stunning play of color and light suspended in a clear gemstone matrix. Set in a minimalist 14k yellow gold pendant with four sets of double prongs and a simple gold edge. The sturdy 1mm wheat chain measures 18" and has a lobster claw closure. One of a kind piece.