![]() ![]() ![]() The exception to this would be material with a color center prone to charging/fading under certain lighting/temps, like padparadscha, yellow, or orange sapphire (due to active or inactive iron content). ![]() I'm not sure labs care much about the color shift of CS amongst other lighting temps that may be found in the home, like incandescent or fluorescent, unless we're talking an actual color change CS, such as alexandrite or garnet, etc. I prefer 5500K, which would be the equivalent to just around noon with the sun overheard on a clear day. AGL uses a solid 5500K and the GIA uses the higher end of the spectrum at 6500K (likely because they're more diamond-intensive). It probably does depend on the lab, but I think it is agreed amongst most that the proper examination lighting temp for CS is one that mimics daylight (which would be approximately 5000-6500K). Ask our PriceScope members and industry experts for a second opinion or get lost in the thousands of user-shared diamond and jewelry images for inspiration. ![]()
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