I have the opportunity to purchase a pear shaped stone at auction (reputable auction house). The stone is 1.90 carats and looks very large - possibly like a 3 carat. The stone is a very white color, and only has a few noticible inclusions when looking through the loop (nothing with naked eye). The stone is not certified. What is your opinion on purchasing a stone that is very pleasing to the eye, but that you do not have specific information about? The intent would be to wear it(not for investment or resale). Do you think there is something wrong with the cut of the stone for it to appear so large? Thanks!