Don't get your hopes up.
WELL dat sucks. I just ordered a new truck LOL. I read what you said. Lot of variables for sure. I will take it to a jeweler and see what they say. Sure made a mess out of my bathroom mirror LOL
I passed two test according to this site. The breath test and my mirror. IM JAZZED ,,,,,,lol
http://www.thespruce.com/is-your-diamond-real-2043121
Another site i looked up on my phone said a 1/4 carat is worth $275-$400 depending???