As amethyst is the February birthstone, this nose stud featuring a 2mm amethyst cubic zirconia crystal makes a pretty treat for yourself or a birthday gift with meaning for anyone born in February. Made from 9ct yellow gold, this L-shaped nose stud has a size of 7mm from front to back and the back of the L measures 5mm. With a pin width of 0.57mm, it has a weight of just 0.05 grams.