Gemstone Total carat weight 1.00 Genuine London Blue Topaz, 1 pc, Heart Cut 4.00mm Genuine London Blue Topaz, 1 pc, Marquise Cut 6x3mm Genuine London Blue Topaz, 1 pc, Radiant Cut 6x4mm vibrant color clean clarity Pendant pure sterling silver with .925 stamp 1.23 grams Dimension: 5/8 x 3/8 inch modern three stone corsage design featuring prong setting. This piece shows excellent craftmanship and has a one of a kind design