I have the white gold pave and I’ve never seen a trace of color in the I -J range. Bulgari is a high end jeweler and would never use anything less than D color. I can only speculate that the salesperson who opined Bulgari used J color diamonds was not adequately informed.I think if you go with white gold you can def spot diamonds that are in the J-I range. H and above will stay white with white gold. I would not worry about color. For me, the cut is the most important and I have not been disappointed with Bvlgari yet. I just recently ordered the semi-diamond serpenti and waiting for it to arrive. Will share once I got it.