If you can afford a diamond ring, why not get one. Unless your girl deeply prefers another gemstone, diamond is your best bet to really score everlasting romance points from your future bride. In selecting a diamond gemstone, it’s not enough to go to a store and consult the attendant there. The attendant would naturally say their diamond is the best one. While you don’t need to be a diamond appraiser, it’s good to at least have an idea how diamonds are graded. When checking out engagement rings from NYC jewelers, what are the qualities you should look for?