Opal is a unique gemstone made of hydrated silica, celebrated for its "play-of-color"—a dazzling display of rainbow hues that shift as the stone is viewed from different angles. Unlike most gemstones, opal has no crystal structure and is classified as a mineraloid, forming when silica-rich water seeps into rock crevices and hardens over millions of years.
7x5 mm facted white opal with beautiful rainbow flash set into an adjustable, gold plated, sterling silver ring with a celestial design.
This ring is adjustable and will best fit sizes 7.5 - 9.5
