赞！
另外我个人觉得分数并不是越低越好，只要＜２就可以.
原话:
A score below 2 (Excellent) means you have eliminated known poor performers (more than 95% of all diamonds). Your own personal preference may be for a diamond with an HCA score of 1.5 more rather than one with a lower score of say 0.5.
