Hello all. I am looking at purchasing a specific diamond from a big chain diamond store in my city . It is a "color-i si1 1.03ct cushion cut" along with a Henry Daussi Mtg. The price that I was given with the mtg made in white gold along with the diamond is 5579.40 after tax (diamond-4,015 and the mtg-1225.) If I want the mtg to be platinum, then it would be 6289.60 after tax (1,895 for the platinum option.) My question to you all is this a great deal? I've been researching diamonds on blue nile and I see other stones on there with the same cut, clarity, color, carat at a cheaper rate for a couple hundred bucks shy of a 1,000 difference.