One of the world’s most coveted gemstones, opal’s name evolved from the Roman opalus which was derived from the Greek 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 unique qualities have attracted the attention of many ancient civilizations – and still do.

Precious opals display play-of-color, a brilliant range of rainbow-like colors that sparkle when viewed from different angles. Only opals containing silica spheres in very precise arrangements and of a particular size display this rare effect, sometimes commonly referred to as "fire" or "flash".