This nose stud has a hinged andralok fastener which is incredibly secure. At the front of this 9ct yellow gold stud is a 3mm light sapphire blue crystal which is round cut and set in four tiny claws. A crystal this size will be clearly visible in the nose, but its simple design means it is still perfect for everyday use. If you're looking for birthday presents, sapphires are associated with the month of September, so this could make a great gift at this time of the year.