This is an authentic MARCO BICEGO 18K Yellow Gold Aquamarine Siviglia Necklace. The necklace is crafted of 18 karat yellow gold and features bezel set aquamarine stones and hand-etched bead stations on a long chain finished with a lobster clasp. Follow this item for alerts. Marco Bicego is a registered trademark of Marco Bicego. FASHIONPHILE is not affiliated with Marco Bicego.