Tiffany on the other hand is a whole different story. A one carat Tiffany solitaire diamond ring that is good quality will run you $25,000. Remember that it is only 1 carat, which I think is a good enough size but nowadays it looks like women want a couple carats or more. So if you want something like three carats from Tiffany & Co, prepare to write a check for over $100,000.
turn that 1 into a 2...3-4 carat rings from tiffany's run about $200k-$400k. i have had a few on my finger just for sh*ts and giggles.