Square Crystal Earring JacketsAdd these earring jackets to your diamond studs and other favorites to expand your earring wardrobe to one fit for royalty. Simply use these instead of conventional backs. New! Red Heart jackets are now available in yellow gold with YG Chrysmela. Three functions in one: 1) add gorgeous sparkle and movement to your favorite studs, 2) securely lock your precious earrings, and 3) lift and support your post back earrings. Handcrafted in heirloom quality