I'm helping my friend look for a stone for his future fiancé. He's interested in finding a stone from 1.5-2ct, ideal or excellent cut round brilliant, D-J color, eye clean (up to SI2), certed. Budget for the stone is around 8K and he'd like to set it in a platinum 6 prong Tiffany solitaire. Does anyone have something like this that they would like to sell? Thank you! (I had to post a pic, so this is my set! My friend wants a ring similar to mine)