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Diamond?		 Fracture filled?
Irradiated?
HPHT treated?

Ruby?		 Glass filled ?
Diffused?
Synthetic?
 
Tables of Gemstone Identification

Emerald?		 Fracture filled?
Synthetic?
Triplet?


Sapphire?		 Heat treated ?
Diffused?
Synthetic?
     Natural / Treated / Synthetic / Imitation
 
      Ideal to analyze the results got with all standard gemological tools such as refractometer,
      spectroscope, loupe & microscope, density scale, dichroscope, polariscope, UV lights,
      dichromatic filters, this chart became in seven years a reference for hundreds of gemologists.
 
      View detailed features        Order now
 
      "...Not all gem charts are created equal, as BLUE CHART'S new incredibly comprehensive and detailed gem ID chart attests..." >                INSTORE MAGAZINE: The magazine for the American jewelry store owner

Amber?		 Amber or copal?
Clarity improved ?
Reconstructed?
Gems, Minerals, & Fossils WebRing by s_r_a_inc
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Turquoise?

 Impregnated?
Reconstructed ?
Synthetic?