Made from sterling silver, these stud earrings showcase the stunning deep blue of sapphire gemstones. Stamped with a 925 metal mark and weighing 0.7 grams as a pair, these earrings each display a round sapphire gemstone with a 4mm diameter. Sapphire is the September birthstone, so these earrings make a wonderful September birthday gift. Measuring 1.5cm from front to back, they are supplied with butterfly back fastenings.