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Gem ID

This topic contains 1 reply, has 2 voices, and was last updated by Profile photo of sydp sydp 2 months, 1 week ago.

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    Profile photo of lgems

    I have a cabochon cut stone with a light blue color and a refractive index of 1.47. The turquoise RI is in the range of 1.6 (not even close). The indication I get from my refractometer is Lapis, but the color and characteristics do not fit the average lapis (RI 1.5)
    Any suggestions

    Profile photo of sydp

    Hi some photo’s may help


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