Renata Diamond Tennis Necklace A timeless piece, the Renata Diamond Tennis Necklace is crafted in 18k white or yellow gold with diamonds in varying sizes - with the largest diamonds set in the center and gradually getting smaller. Each stone is positioned with precision to allow the highest brilliance of the gems. • 18K Yellow or White Gold • Diamond: approximately 1.6 or 3.0 carats • Length: 16-inch (1.6 carats) or 17-inch (3.0 carats) • Weight: 17g