This piece is stunning! My guess would be H or I in color and SI1. Lots of sparkle for a tiny piece. My only complaint is that the earring post is made of 14k, which is too soft as a threadless push item. I would love to see a titanium post and titanium pin combo, with 14k head. I’m going to check with my jeweler to see if it can be modified, because it doesn’t feel as secure as my other push backs. As for the other piece I ordered (plain gold cuff) I have 0 complaints! I would love to buy more cuffs <3