14k Yellow Gold Australian Opal Aurora Halo Earrings | IndulgemsThese are pure opal fire in motion. Two free form Australian opals, glowing with vivid rainbow flashes from every angle. Each stone feels like its own little universe. I set them in my signature Aurora setting, with a diamond halo finished in black rhodium for that sharp, modern contrast. The look is elegant, but it still has an edge. The omega backs are fully diamond encrusted and super secure, so they feel as luxurious as they look. Details 13.