| Gem Identification BlueChart |
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| Diamond? |
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Fracture filled?
Irradiated?
HPHT treated? |
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| Ruby? |
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Glass filled ?
Diffused?
Synthetic? |
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| Tables of Gemstone Identification |
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| Emerald? |
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Fracture filled?
Synthetic?
Triplet? |
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| Sapphire? |
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Heat treated ?
Diffused?
Synthetic? |
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| This chart is a compilation of information indispensable to analyze the results obtained with standard gemological tools such as refractometer,
loupe & microscope, dichroscope, polariscope, spectroscope, density scale, UV lights, dichromatic filter; |
| The main goal is to quickly distinguish between natural and treated gemstones, synthesis and imitations; |
| Traps and potentially misleading results are highlighted. |
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| Completely Revised and Updated Edition 2012 Overview Order now |
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| Since its first edition in 2002, this chart has become a reference for hundreds of gemologists. |
| "...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 |
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| Amber? | |
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Amber or copal?
Clarity improved ?
Reconstructed? |
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| Turquoise? | |
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Impregnated?
Reconstructed ?
Synthetic? |
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