SWAROVSKI 2712 MARGARITA FLAT BACK, HOTFIX CRYSTALS The Margarita is a flower shape, multifaceted stone with a silver backing and a heat sensitive adhesive on the flat side of the stone. Crystalized™ Swarovski Elements are the most popular rhinestones on the market. They are the most brilliant stones in the industry. Swarovski Rhinestones are used on pageant dresses, bridal gowns, dance and skating costumes, as well as western wear, flip flops and even your phone. These hot fix rhinestones may be attached to your project with the original "Bejeweler" or you may use one of our quality adhesives.