Sparkling Czech Crystals earrings with a Ferido™ Formula x1 modeled core. bring a delightful pink glitter to a woman's looks. Set in Sterling Silver with silver butterfly backs this gorgeous pair of Stud earrings makes silver crystal jewelry with an highly elegant flair that is of a timeless beauty. The small size makes these earrings true collector items, affordable embellishments that flatter the features of women with a different color in each ear.