Chopard Happy Diamonds White Gold Cross Necklace 794055-1001. This necklace is made of 18 carat white gold. The cross pendant features three floating diamonds (0.17 carats) in the center. The border of the cross is set with 56 pave round-cut white diamonds (0.021 carats). The diamond cross pendant is suspended from a 16.53 inch white gold rolo link chain with a lobster clasp.