Give your stud earring collection a little burst of colour with these double stud earrings featuring both aquamarine and clear crystals. As aquamarine is the March birthstone, these earrings would make a beautiful March birthday gift. Made from 9ct yellow gold, these studs have a front to back distance of 1.2cm, with the double crystals measuring 0.4cm x 0.9cm x 0.3cm. Weighing half a gram, they have butterfly back fastenings.