A small round garnet gemstone with a 3mm diameter gives these stud earrings a beautiful red hue, sparkle and the January birthstone too, which makes them ideal to give as a January birthday gift. The gemstone is set in 9ct yellow gold stamped with a 375 metal mark. Weighing just 0.2 grams as a pair for comfortable daylong wear, the studs are secured in the ear by butterfly backs.