Orthoclase moonstones display a phenomenon known as adularescence aka schiller aka that otherworldly blue glow. Moonstones are bathed in the lore of many ancient (and semi-ancient) cultures. The Ancient Greeks called it Aphroselene for Aphrodite, the Romans believed that the goddess Diana could be seen within it, and Europeans of the Middle Ages believed that gazing into a moonstone would bring about prophetic dreams. At the turn of the 20th century, the Art Nouveau movement and its obsessions with the organic and ephemeral made gauzy gems like moonstone very popular in jewelry. This outstanding collar necklace is made in 9k yellow gold with a stunning fringe of moonstone cabochons.