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I must apologise, because I believe here is not the most likely section to ask, even I dare to do. Today I tried to purchase two diamond rings from Stépanian Yvan, one for me and one for my girl. I understand from a friend I must be scrupulous to several characteristics when buy diamond rings, and one example characteristics would be cut and shape of it. I understand that there is a "Diamond Cut Grading" which can throw the diamond value. Does anyone have more info about this scale of measurement?

the best place to get information about diamond rings is in a jewelry shop.

Hope it helps