Tiffany Paper Flowers Diamond and Tanzanite Open Cluster Necklace is crafted in Platinum with round brilliant diamonds and cushion-cut tanzanites. The round brilliant diamonds has a total carat weight of .28 and the round tanzanites has a total carat weight of .13. Mini flower cluster size: 12 mm x 11.5 mm. Small flower cluster size: 16 mm x 15.5 mm. This pendant is on a 16" chain.