My son is proposing to his long time girlfriend and he need advice about purchasing a diamond engagement ring. He has found a couple of rings he likes. If you had a choice of purchasing diamond which one would you choose and why, a small diamond clear no tint or would you purchase a diamond with very little tint(that you can't see except under a light) but a bigger diamond? I know nothing about the two and he needs advice so if any of you ladies have some advice I would appreciate it, thank you..