Looking for the perfect earrings? These Konstantino clip earrings are crafted from gleaming 18-karat yellow gold and effulgent sterling silver (perfect for mixing and matching metals) with just a splash of electric London blue topaz to bring out the color of your eyes. London blue topaz. Sterling silver. 18-karat yellow gold filigree. Approximately 2 3/8"L x 1"W. Post backs. Handcrafted in Greece.