Is an I colored diamond to low of a grade to use for an engagement ring? I want the largest stone for my money, but I also want it to look white when put in a platinum setting. I''ve seen pictures of the I colored stones online and some look extemely white while others look kind of cream colored. I was wanting to buy at least 1.5 carats and still stay within my budget of $10,000. Any help would be appreciated.