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


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Valuation date: 31 Aug 2015
Value chart for Sphalerite. Data valid till: 14 Sep 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.
068 - medium yellowish Green; very slightly greyish068 - medium yellowish Green; very slightly greyish
Alternative name, occurrence category: Common
105.91110.06114.22124.61166.17
050 - medium Yellow; very slightly brownish050 - medium Yellow; very slightly brownish
Alternative name, occurrence category: Common
92.0495.6699.27108.30144.42
040 - medium orangey Yellow; strong040 - medium orangey Yellow; strong
Alternative name, occurrence category: Common
99.49103.40107.30117.06156.11
025 - medium reddish Orange; strong025 - medium reddish Orange; strong
Alternative name, occurrence category: Common
126.50131.47136.43148.85198.49
028 - medium dark reddish Orange; strong028 - medium dark reddish Orange; strong
Alternative name, occurrence category: Common
64.5267.0569.5875.91101.23

Color grades system


Approximate clarity factors:

Clarity grade VVS VS SI1 SI2 I1 I2 I3 OPQ
Value factor1.0000.9070.7820.6410.5020.3960.328---

Clarity grade patterns


Gemstone Appraisal:  Sphalerite  

Value Charts: printable version  

Gems info: Sphalerite  


 
 
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