SUWA
QUALITY SCALE
ALEXANDRITES
Untreated
The 3 quality zones as they appear in the quality scale
Quantity distribution of gems that are polished to 1-carat size
 
VALUE INDEX
Carat(s) GQ JQ AAQ
3 10.0 5.0 2.0
1 1.8 1.0 0.4
0.5 0.8 0.4 0.2
 
 
 
-GQ-Gem Quality
-JQ-Jewelry Quality
-AQ-Accessory Quality
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