Mid century, 1950’s, 18ct white gold, moonstone ringThis ring is sold, sorry. See similar rings: Metal: gold rings, white gold rings Moonstone ring, 20th century. This large moonstone cabochon, weighing approximately 12 carats, is unusual for its pure white colour, it which gives it a uniquely mystic, diaphanous appeal a rather beautiful ethereal sheen. Claw set within a tasteful white mount without any secondary stones, this ring allows nothing to detract from its hypnotic central feature, creating a