$80 shipped. PayPal preferred
Giving Ugly Hedgehog a shot at this before it goes on eBay. This is the latest version of the very popular 50mm 1.8 lens, which sells for $125 new. Original box, instructions included. Absolutely nothing wrong with this lens, but I ended up getting the 50mm 1.4 recently.
The latest version is the 50/1.8 STM, but you did not mentioned that it is the STM!