2, #1 is too small

來源: 2012-10-08 11:36:54 [舊帖] [給我悄悄話] 本文已被閱讀:

you cannot really tell difference between F and E color or VVS1 and VS1 with naked eye. however, 1.3 and 0.98 is obvious. :)

fluorescence and table ratio are also important.