Look pretty in pink with our 9ct yellow gold nose stud which features a 2mm pink opal stone - the birthstone for October, which is handy if you're a Libra. Of course, you can wear it if you just like the colour too! It measures 8mm from front to back and is curved into a L shape for easy securing. With a pin gauge of 24Ga it weighs a teeny tiny 0.04 grams.