Emeralds, Hard to picture!

November 29th, 2013

Emeralds, Hard to Picture!

Over the last few years, there have been many pictures of celebrities in stunning Emerald pieces of jewelry in the press. They always look very impressive and exotic reminding one of all that is glamorous and luxurious. Now taking pictures of individual loose Emeralds is a whole different challenge. In fact, Emeralds are the hardest stones to take pictures of, a picture that truly represent what you see in real life. One reason being, that digital cameras have a hard time capturing the dynamic range of greens that exist in Emeralds, as do monitors or screens in displaying them.

LCD color GamutThis is a CIE XYZ color system xy chromaticity diagram. The areas enclosed in dotted lines represent the range of colors human beings can see with the naked eye. The ranges corresponding to the sRGB, Adobe RGB, and NTSC standards defining color gamuts appear as triangles connecting their RGB peak coordinates. The color gamut of an LCD monitor’s hardware can be indicated using similar triangles. An LCD monitor is not capable of reproduction (display) of colors outside its color gamut.

Next, most gemstone images are taken with telephoto macro lenses which compress (flatten) the image, visibly bringing any inclusions throughout the stone together into a single plane, and thereby appearing more heavily included in the image than in person.

The biggest factor that indicates the fineness of Emerald is its clarity and this is always graded and judged just with the naked eye. Taking a close up picture of an Emerald in reality is magnifying its every small inclusion by a factor of 30 or more. In other words, a close up picture will not be a fair representation of what your naked eye will see. These limitations are truly a challenge when trying to determine the quality of the stones by looking at pictures of Emeralds. Most pictures of Emeralds you see in magazines and brochures are heavily corrected, just to do the stone justice.

Keep this fact in mind when viewing Emeralds on websites and remember that they are always much nicer in person; making them some of the least photogenic of gems!

 

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