Can I put a 14g in a 16g septum piercing?

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Can I put a 14g in a 16g septum piercing?Yes you can. The jewellery won’t be very snug, though, and might move around a lot. Having said that, the whole will probably close up a bit around the smaller gauge jewellery so you might not be able to wear 14g there any more. … So I used this 2mm diameter needle for a piercing with a 16g jewellery.