multicolor  
 
Gemval logo
Reference Values of Gems
Database updated: 2 Aug 2016
  Sign up Log in
 
     
 
 
     
 

Amethyst: average retail prices, Sep 2016


Select gemstone type:

Pricing data on alexandrites, diamonds, emeralds, opals, rubies, sapphires, spinels and tanzanites is available for subscribers only. Subscribe


Valuation date: 28 Sep 2016
Value chart for Amethyst. Data valid till: 12 Oct 2016
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.
203 - medium reddish Purple; very slightly brownish203 - medium reddish Purple; very slightly brownish
Alternative name, occurrence category: Rare
35.6736.5737.4739.7248.71
180 - medium dark Violet; strong180 - medium dark Violet; strong
Alternative name, occurrence category: Common
30.9131.6932.4734.4242.22
186 - medium dark bluish Purple; strong186 - medium dark bluish Purple; strong
Alternative name, occurrence category: Common
29.9930.7531.5033.4040.96
185 - medium bluish Purple; very slightly greyish185 - medium bluish Purple; very slightly greyish
Alternative name, occurrence category: Common
14.9415.3215.7016.6420.41
181 - light Purple; very slightly greyish181 - light Purple; very slightly greyish
Alternative name, occurrence category: Common
7.667.858.058.5310.46
187 - very light Purple187 - very light Purple
Alternative name, occurrence category: Common
4.925.055.175.486.73
079 - very light Green. Irradiated.079 - very light Green. Irradiated.
Alternative name, occurrence category: Prasiolite. Common
11.6611.9612.2512.9815.93

Color grades system


Approximate clarity factors:

Clarity grade VVS VS SI1 SI2 I1 I2 I3 OPQ
Value factor1.0000.7840.6180.4240.342---------

Clarity grade patterns


Gemstone Appraisal:  Amethyst  

Value Charts: printable version  

Gems info: Amethyst  


 
 
Gemval logo Color grading system
Color system for opals
Clarity grades
Gems info
How it works
FAQ
Interviews
Testimonials
Updates
Partners
Privacy Policy
Disclaimer
Site Map
About us
Contacts
©2004-2016 Gemval.com
 
  multicolor