.36 Round & Baguette Diamond Pendant in 18K White Gold. 36 Round Baguette Diamond Pendant in 18K White Gold. This modern pendant necklace features . 36 carats of round and baguette cut diamonds set in 18 karat white gold. The pendant makes interesting use of the differing diamond cuts by their creative settings, with the baguettes lined up in a channel and then separated at the corners with lines of the round cut diamonds. The necklace measures 18 inches in length.