My boyfriend and I decided that it was time to start the engagement ring search. I went to Robbins a while ago with a friend and found a gorgeous Scott Kay setting that I absolutely fell in love with. My question now is the setting was $1875 (around that) and I don''t think my boyfriend wants to spend anymore than 4000 on the ring. I really would like a round diamond that is .65-.80 in size and a D-G in color since it''s going to be set in platinum. My question is can I get the diamond from an online vendor and have Robbins set it for me or would that cost too much? What are my options to keeping under our budget?