Luminous, colorful gems are instant mood boosters. Slip on some happy with this stackable three-ring set, featuring a kaleidoscopic mix of .… Luminous, colorful gems are instant mood boosters. Slip on some happy with this stackable three-ring set, featuring a kaleidoscopic mix of .83 ct. tot. gem wt. round amethyst, yellow and orange citrine, garnet, peridot, London and Swiss blue topaz, and pink and green tourmaline gems. Crafted in polished 18kt yellow gold over sterling silver. 3/8" wide when stacked. Multi-gemstone ring set.