Opal triplet ring
Beautiful opal triplet set into 9k yellow gold ring. Size N1/2. Stone size 13x11mm approx. What is an opal triplet? A manufactured opal consisting of three layers. A paper-thin slice of solid natural transparent or translucent-coloured opal is glued to a dark backing of black glass, with a dome of clear quartz crystal glued onto the top. The crystal dome is to magnify and protect the opal. A triplet is less expensive than a doublet as less opal is used.