{"id":2738,"date":"2020-02-15T09:08:02","date_gmt":"2020-02-15T14:08:02","guid":{"rendered":"https:\/\/datlas.com\/?post_type=product&p=2738"},"modified":"2021-05-24T09:13:20","modified_gmt":"2021-05-24T13:13:20","slug":"colorcard","status":"publish","type":"product","link":"https:\/\/www.datlas.com\/blog\/ideal-scope-store\/colorcard\/","title":{"rendered":"Hofer Gemstone COLORCARD"},"content":{"rendered":"

This product has been around since the early 1990’s, but it has never been recognized for its importance.\u00a0 As you change lighting environments from Warm White to Cool White to Daylight many colored gems and some diamonds change their apparent visual color.\u00a0 While this was important when all we had was incandescent and fluorescent fixtures along with daylight, the advent of LED lighting has made the issue of far greater importance and interest.\u00a0 Our eyes mix various wavelengths of the spectrum to visualize the color of objects, including gems.\u00a0 LED’s add special confusion in this regard because not all LED’s make the visual color temperature which we perceive from the same stronger or weaker wavelengths.\u00a0 Depending on their CRI, their Color Rendering Index, LED lighting can really trick you in the accurate observation and grading of body color.\u00a0 This can be a very costly error for dealers and even the smartest of expert consumers.<\/b><\/p>\n

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The cure is to become familiar with how the three elements of the Hofer COLORCARD demonstrate when you are in a lighting environment such as the one you use at your office or at home, or if you are in a lighting environment which may throw off your color vision or the ability to use your master gemstones to grade a potential purchase.\u00a0 Gemologists often use cubic zirconia with varying degrees of yellow tint to determine the color of diamonds, but the metamerisim present in CZ is vastly different that that of diamond.\u00a0 Metamerism is a shift in perceived color due to a change in the lighting spectrum strengths, perceived color temperature and now the color rendering index of LED lighting.<\/em><\/span><\/strong><\/h2>\n

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See BOTH of these links below for articles written about this product:<\/h2>\n

Color Card article publication<\/a><\/p><\/blockquote>\n