Diamond Guide Which shape should the diamond have? What cut? Shoud your diamond be White or colored? We advise you individually and personally and offer extended explanations on the following pages.cleaningTips & Guides, Diamond Buying Tips: Diamond Cuts and Shapes | Diamond Shapes - Lab Grown Diamonds, Lab Diamonds, LGDsWhite diamonds: 4 C's classification (carat, color, clarity, cut) & symmetry, polish, fluorescence.Fancy Color Diamonds | colored diamonds