Detailed Diamond Cut Index | Everthing About Diamond Proportions

Diamond Crown Angles | Importance of Top Diamond Angles

The original ideal angle for the crown is 34.5 degrees. Here again, the major gem labs do agree that slight variations from this angle will still produce a well-cut diamond. This angle was designed to provide the final escape route for the reflected internal light so that the dispersion and brilliance could be viewed. It was also important to provide an angle great enough for light to enter and exit from more diverse directions. Continue reading

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