What is a Doublet Opal

Opal doublets consist of a thin layer of natural opal bonded to a black or dark-coloured base, typically made of a dark-coloured mineral such as ironstone or basalt. The base provides a dark background that enhances the colours of the opal layer, making it appear more vibrant and intense. Opal doublets are typically less expensive than solid natural opals because they are made from a smaller amount of natural opal, and the base material can be less expensive. They are commonly used in jewellery making and also in other decorative items.