I'm new to this website and quite uneducated when it comes to diamonds. Would be good to know what jeweler was meant. If you can post here an info on your diamonds we can see what grade they belong. 31 PM Jewlers are people.
People like to make their own rules for games so they can win.
This game is played by having an in house grading that means zilch outside his own store. To get A grade you have to go back there. It is just a game. In truth, you ought to buy what you like the best keeping your budget and emotional needs in mind. This may prove easier said than done, but don't get overwhelmed by the grading structure that has been applied to diamonds.