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Reference Values of Gems
Database updated: 1 July 2015
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Fire Opal: average retail prices, Jul 2015


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Valuation date: 30 Jul 2015
Value chart for Fire Opal. Data valid till: 13 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.
018 - medium dark orangey Red; strong018 - medium dark orangey Red; strong
Alternative name, occurrence category: Common
107.92114.66121.41138.26205.67
017 - medium orangey Red; very slightly brownish017 - medium orangey Red; very slightly brownish
Alternative name, occurrence category: Common
155.90165.64175.38199.72297.10
025 - medium reddish Orange; strong025 - medium reddish Orange; strong
Alternative name, occurrence category: Common
144.30153.31162.32184.85274.98
034 - medium Orange; strong034 - medium Orange; strong
Alternative name, occurrence category: Common
122.40130.05137.69156.80233.26
035 - medium Orange; very slightly brownish035 - medium Orange; very slightly brownish
Alternative name, occurrence category: Common
70.8375.2679.6890.74134.98
032 - medium light Orange; strong032 - medium light Orange; strong
Alternative name, occurrence category: Common
57.3160.8964.4773.42109.22
031 - light Orange; strong031 - light Orange; strong
Alternative name, occurrence category: Common
46.5449.4552.3659.6388.70

Color grades system


Approximate clarity factors:

Clarity grade VVS VS SI1 SI2 I1 I2 I3 OPQ
Value factor1.0000.9500.8900.7800.581---------

Clarity grade patterns


Gemstone Appraisal:  Fire Opal  

Value Charts: printable version  

Gems info: Fire Opal  


 
 
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