March born ladies with nose piercings, we have the perfect birthday gift for your wish list! Our 9ct yellow gold nose stud features a 2mm blue zircon CZ crystal that's aquamarine in colour - your birthstone! Of course there's nothing stopping you buying it for yourself, even if you're not born in March. We won't tell! This L-shaped stud measures 7mm (5mm at back of L) and has a pin width of 0.57mm.