We cannot get enough of topaz jewellery and these 9ct yellow gold studs have the prettiest sky blue ones ever! These little gems measure 3.5mm wide and sit on top of handy Andralok pins so you can just push them through your lobe piercing and click the lever into place. No fussy backs to lose! The pins on these are a slightly thicker 1mm. If you're looking for a November birthstone gift then these are ideal. Don't forget we do a cute craft style gift box too!