This lovely piece is marked 14k on the chain and on the pendant it has  a 14k back and platinum front. The chain is is 15" long and the pendant with the pearl measures 2" x 1 1/4". It weighs 11.5 grams. The pendant holds a total of 17 natural diamonds with an approx total weight of 1.50 cts. The two center diamonds are old cushion cuts, The rest of the diamonds are brilliant cuts and European cuts. To me, this indicates that some of the diamonds have been replaced over the years. At the bottom of the pendant is a golded cultured South Sea pearl that measures 12.5 mm x 10.2 mm. This piece is in nice condition.