Black Diamond Rhinestone Earrings. These earrings are made with Vintage Czech Black Diamond Glass Rhinestones. Hand set crystals in a gold plated prong settings, bringing out the deep rich color of the black diamond glass. I added Swarovski glass pearls to these kidney shaped ear wires that can be removed or added back on easily. Total length of earrings with lever back ear wires is: 1 1/4 inches. Total length of earrings with kidney shaped ear wires is: 2 1/4 inches. All metal is lead free.