Tanzanite Color Grading

It is amazing how the many grading labs in the world have such differing opinions on Tanzanite color. I have just had a customer think that a Tanzanite, which is blue dominant on our website, is more violet because the IGI certification says it is bluish violet. I really wish that there would be a uniform guide to color like the vB GIA scale for all labs to use, but knowing the world of jewelry that is a tall order. Their is just too much ego for the world of labs to change and that is a shame. Bottom line though, if you want the true color of any gemstone online than look for white lighting with white back drops and ignore most certifications.
Warm Regards,

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