I'm sorry I don't know for sure the karat of the metal - I am assuming its 24k but put 22 because I had to put a purity before I could list it.  I am also not sure of the size but I am a 7 (or used to be) and it fits me well.  This was never used as the breakup occurred before the engagement.  Ebay is telling me to start the bid at 580 but I think he only paid around 400 for it.  Very pretty ring. 

from 2009-ish.  Make an offer: it's got to go.