Fantasy Landscape Rainbow Free Stock Photo Public Domain Pictures 91,000+ Rainbow Waterfall Illustration Pictures Watercolor Illustration of a Rainbow in the Sky with Mountains, Meadows Premium Photo A Cascading Waterfall that Flows in All Colors of the. The 14K Gold Rainbow Charm Necklace features seven brilliant ruby, sapphire, amethyst and emerald stones, making it the perfect layering piece to accent your necklace stack. Adjust this necklace to 16", 17" or 18" for rainbow shine at any length. 0. 81 carats