Perfectly combining naturalistic designs with bold, dynamic architecture, this Art Nouveau rainbow moonstone revival ring checks all the boxes. The ethereal rainbow moonstone displays billowy hues of blue and purple, with chatoyance, set in a sleek 18k gold bezel. The split-band and geometric details offer a dramatic side profile while the well-proportioned cabochon gem presents a commanding, yet understated elegance. The moonstone's adularescence is elusive and challenging to capture in a photo or video. She's way more beautiful in real life.