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Photography and Background Color

6/25/2019

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When viewing gemstones, a neutral gray background reduces color bias and allows your eyes to see true and accurate color. This is why GIA recommends that a gem's color be evaluated against a neutral background, why the Photoshop application uses a gray background, why illustrators like their working areas to be gray, and why a neutral gray card is used as my studio photography backdrop. Black, white or other colors can make dramatic photo backgrounds, but anything other than neutral gray can easily result in a less-than-accurate color representation of a gemstone.
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Color Acuity

6/11/2019

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Color acuity is obviously a required skill for any colored stone dealer and customer. How is yours? Here’s a fun test based on the Munsell color system.
Munsell Hue Test
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