how much should i expect to pay for a princess cut diamond, anywhere from .75 to 1 carat..preferably 1 carat.. d-g in color, if-vs2, with very good symmetry and polish. i dont know anything about table, or girdle or any of that stuff, im just starting out and my budget is around 3500.00..my girlfriend wants a big quality stone. my problem is i dont think i can afford a "big" and "quality" stone for my budget. any recommendations? thanks