| 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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| An updated compilation of all necessary information and useful tips to identify
common and less common gemstones, to distinguish synthesis, imitations and treated gems. |
| Ideal to analyze the results got with all standard gemological tools such as refractometer,
spectroscope, loupe & microscope, density scale, dichroscope, polariscope, UV lights, dichromatic filter. |
| Since the first edition in 2002, this chart became a reference for hundreds of gemologists. |
| The edition 2010, our entirely revised and updated 4th edition, is now available. |
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| View detailed features Order now |
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| "...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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