This is an authentic MARCO BICEGO 18K Yellow Gold Diamond 2 Strand Goa Necklace. This necklace is crafted of 18 karat yellow gold and features two strands with round brilliant cut diamond stations weighing approximately .17 total carat weight. Follow this item for alerts. Marco Bicego is a registered trademark of Marco Bicego. FASHIONPHILE is not affiliated with Marco Bicego.