Opal is a mesmerising gemstone known for its captivating play of colours. It belongs to the mineral family of silica and is composed of tiny spheres of silica arranged in a three-dimensional grid. The unique arrangement of these spheres diffracts light, resulting in a stunning display of iridescent colours that seem to dance and shift as the gemstone is viewed from different angles.

Opal’s play of colours can include hues such as vibrant reds, blues, greens, and yellows, often arranged in mesmerizing patterns. This phenomenon is referred to as opalescence, and it gives opal its distinctive and enchanting appearance. The play of colours is highly prized and is considered the most significant factor in evaluating opal’s value and beauty.