Jared’s Sapphire Engagement Ring

It’s a size 6.5. I bought it 10/31/18. I got it 11/03/18. I wore it once. My ex fiancé decided to do some questionable things to me so now I’m trying to get rid of it. It just brings me anger anymore. I have the original box and receipt. I spent 3200 on it. I want to sell it for 3000 since I only wore it once and that was to take pictures. I am willing to negotiate. It’s 14k white gold. It’s real diamonds and a lab created sapphire. It can be adjusted. I’m only getting half of what I paid.