More Details Marco Bicego pendant necklace from the Goa Collection. Approx. 16.5"L. 18-karat white gold with signature hand-engraved finish. Delicate rolo chain with large, open, round pendant. Signature hand-twisted rings interlock with pav black diamond rings. Five white diamonds accent twisted rings. 0.48 total combined diamond carat weight. Handcrafted in Italy.