標題: Questions need your help [打印本頁] 作者: 匿名 時間: 2009-1-12 13:54 標題: Questions need your help
Hi Sam,
Would like to know if a diamond marked with H/A means that it is a prefect cut diamond?.
Also if the diamond has 3Ex cut grade does it means it is a prefect cut diamond?
Is a prefect cut diamond has the best 亮光和火彩 or prefect cut diamond can still look dull
If H/A or 3 Exe diamond does not mean it has the best 亮光和火彩, Should we only depends on the cut ratio of following seven criteria in order to determine which diamond has the best 亮光和火彩
七个切割比率，包括：台宽比、冠高比、腰厚比、亭深比、底尖比、全深比、冠角比. much appreciated if you can provide the ideal ratio of each items
