Custom Wire Wrapped Rainbow Fire Opal Necklace/Pendant Sterling Silver .935
Overall size: 1 3/16 x 1/2 inch or 35 mm x 13mm
Rainbow fire opal is a type of precious opal that combines the vibrant red, orange, or yellow body color of fire opal with a rainbow "play-of-color" effect. This rare phenomenon is caused by the diffraction of light within the stone's silica spheres, resulting in a dazzling display of multiple colors, such as red, green, blue, orange, and yellow, that shimmer and shift with movement. While many fire opals are prized for their solid color, the "rainbow fire" variety is particularly valuable and sought after for its intense, multicolor iridescence.