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