Rainbow garnet crystal group from Nara Prefecture, Japan, with sharp natural faces and strong iridescent flash that shifts from green and gold to blue-violet as the crystals are rotated.
Rainbow garnet is valued because the color play is not a dyed or coated effect. The shimmer comes from microscopic, layered growth structures on or near the crystal surface that create thin-film interference, splitting reflected light into spectral colors depending on viewing angle and lighting. In hand, the crystals can look dark until the flash “turns on” as you tilt them
6 crystals / 9 - 11 mm
Estimate: $150 - $165