Diamond Grades & Ratings. “How much confidence should I place in the Grades and Ratings that I see on diamonds in different stores?
The Grades and Ratings that you see on diamonds are virtually “worthless” and mean literally nothing. If you see the same grade or the same rating on two different diamonds in two different stores, you would think that you could then compare prices, but this is pure fiction, because there is no consistency in the grades or ratings. Five or six different groups assign grades and ratings, and there is no consistency in what these grades mean. There is even one service available now where you can send them a diamond, and tell them what grade you want to place on it, and for a fee, they will grade and label it with whatever you want on the papers. They don’t even look at the diamond, they just take the fee and produce the papers with the grade you want on the diamond. Some jewelry chains have created their own rating services so that they can give their own diamonds high grades and high ratings without any interest in accuracy. return to top 20. One retail jeweler quoted me a price of $3,0
