Wow, you don't see a crystal nose stud with this many beautiful colours very often! An absolutely stunning 9ct yellow gold L-shaped stud with an aurora borealis cz crystal stone measuring only 2mm wide. Sitting on top of a 7mm gold pin with the back of the L measuring 5mm, this is a 23 gauge (0.57mm) stud. Match them up with our 9ct gold aurora borealis stud earrings as a lovely gift set.