around 13 mm / 1/2"
metal finding is bronze color, you can buy 925 silver posts for you order here: https://www.etsy.com/listing/108949119
Hypoallergenic surgical steel posts are available on demand - just write it in the message to seller box during checkout
-Please give an allowance for slight difference in size, shape and tint since each piece is individually handmade.
-Each purchase comes carefully packaged and is ready-to-gift.
-Please note that real colors may slightly differ from their appearance on your display.
Other items you might like:
Mint jewelry from Dariami: http://etsy.me/1awvIw8
Other Earrings: http://etsy.me/14NiAkk