How to tell diamond cut quality is good or bad by naked eye

Diamond cut quality of many of our friends do not know how to distinguish between some basis for the issuance of the certificate of authenticity, some based on the seller's instructions, then our eyes are not can not distinguish between good and bad it? In fact, the cut is good or bad is the ability to use our most intuitive visual effects to be judged. How to see the quality of the diamond cut? Here are a few places to note as long as you look carefully will be able to find good and bad.

1, the mesa and the facet of the faceted diamond is straight, there is no buckling phenomenon, realized Granville reflected image having a straight edge surface is not deformed, while the imitation or bad diamond cutting and grinding occurs effect countertops buckling.
2, angular edges and corners of the diamond is straight and sharp, standard round diamond-shaped cut diamonds, three or more edges strict handed point and form a sharp angle, and two small facets strictly intersects with a the ridges. With similar imitation diamonds, due to the low hardness, poor cut, often angular sleek.
3, waistline standard round brilliant diamonds, waist after coarse grinding is usually not polished. This smooth waist called "saccharification" effect "mashing" waist typical diamond cutting and grinding characteristics, performance the Wei waxy reflective phenomenon. Most imitation waist with polishing, polishing lines visible under a microscope.
4, the polishing marks polishing marks appear nearly parallel fine scribe lines, good polishing due to the high hardness of the diamond can be formed, therefore, in the diamond facet the most invisible polishing marks, but sometimes polished not refined , the visible fine polishing marks. Above can make some observations consumers self-identify diamond cut is good or bad, the color of fire cut fine diamonds issue forever shine, the bad cut diamonds would not have so flash color of fire.