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Reference Values of Gems
Database updated: 1 August 2015
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Quartz: average retail prices, Aug 2015


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Valuation date: 02 Aug 2015
Value chart for Quartz. Data valid till: 16 Aug 2015
Values in USD per carat; ref. clarity = VVS, ref. cut = Excellent

Color Color Description; Occurrence 1 ct. 3 ct. 5 ct. 10 ct. 30 ct.
001 - very light Red (light pink)001 - very light Red (light pink)
Alternative name, occurrence category: Common
13.6713.6713.6713.6713.67
030 - dark reddish Orange030 - dark reddish Orange
Alternative name, occurrence category: Common
5.375.375.375.375.37
024 - medium light reddish Orange; very slightly brownish024 - medium light reddish Orange; very slightly brownish
Alternative name, occurrence category: Common
5.045.045.045.045.04
048 - medium light Yellow; slightly brownish048 - medium light Yellow; slightly brownish
Alternative name, occurrence category: Common
5.265.265.265.265.26
063 - light yellowish Green; very slightly greyish063 - light yellowish Green; very slightly greyish
Alternative name, occurrence category: Common
5.015.015.015.015.01
223 - colorless223 - colorless
Alternative name, occurrence category: Common
3.613.613.613.613.61

Color grades system


Approximate clarity factors:

Clarity grade VVS VS SI1 SI2 I1 I2 I3 OPQ
Value factor1.0000.8210.7320.487------------

Clarity grade patterns


Gemstone Appraisal:  Quartz  

Value Charts: printable version  

Gems info: Quartz  


 
 
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