About)). In addition to being gorgeous, opals are reputed to have healing properties and the ability to stimulate the creative imagination. These studs, with their flat, easy-to-wear profile and glittering rainbow hue, are going to be the earrings you wear day in and day out. Details)). Materials: synthetic opal, 14k gold plated sterling silver settings, sterling silver posts, 14k gold plated brass earring backs. Measurements: triangles measure about 1/4". Inspiration)). Opal. Made up of the glories of the most precious gems, to describe it is a matter of inexpressible difficulty: there is in it the gentler fire of the Ruby, there is the brilliant purple of the Amethyst, there is the sea-green of the Emerald, all shining together in an incredible union. Some aim at rivaling in lustre the brightest azure. Of the painter's palette, others the flame of burning sulphur, or of a fire quickened by oil. Pliny the Elder.