hello, i am about to purchase a tiffany ring tomorrow. a lot of people say that there is a 200% - 300% mark up at tiffany's. is it really that much more expensive? does that mean it will be appraised for less money than i paid? i dont have the spec sheet in front of me but what i can remember is brilliant cut, 1.54 ct., i color (i compared it to an f and couldn't tell the difference), vs2, symmetry and polish excellent, no cutlet, no fluorescence, thin girdle, ideal cut (i think 53% table and 59% depth).the price is $16,100 .i know im paying more for the name but the look on my girlfriends face when she sees its from tiffany's is going to be priceless. any input is appreciated. thanks - mike