Home > Term: color grade
color grade
The grade or classification into which a gem is placed by examination of its color in comparison to the color of other gems of the same variety.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
