Opal with play of colour has always been considered one of the most desired gems in the marketplace, earning it the undisputed title as “Queen of Gemstones.” Opal’s name evolved from the Greek opallios, meaning “to see a change of colour.” The Greek word was a modification of the ancient Indian Sanskrit name for opal, upala, which meant “precious stone.” Opal’s phenomenal play-of-colour effect is not seen in any other gemstone; a unique quality that has attracted the attention of gem lovers through the ages.