This 10k white gold round blue topaz heart ring features a 4 mm genuine natural blue topaz with a 0.26 ct total weight. Metal Type: white-gold Metal Purity: 10k Gem Type: Blue Topaz Total Gem Weight: 0.26 ct Setting: prongs Length: 0.38 in. Width: 0.38 in. Stone Shape: Round Stone Total Weight: 0.26 ct Gem Color: Blue Stone Creation Method: natural Stone Treatment Method: Irradiated Stone Length: 4 mm Packaging: FREE Gift Box with Bow