Increase tone and make a stone look dark to an untrained eye so be aware of the Play a part here as bulged pavilions (backs) cut to maximize weight can This is not actually describing the color saturation itselfīut rather overall tone and the light extinction within the stone. The purposes of this article, a good description of Tone is the lightness to This system is the more advanced and looks at all facets of color. Tone is covered more deeply in ourĪrticle on Tanzanite Grading systems under the GIA grading system section as ![]() The B, A or AA grades and spike the images to improve the appearance.Ī video is a much better medium in which to judge color as it displaysĬolor more fully without interference you can see the stone from differentĪngles and judge it in a more objective manner. The fact is, these top colors are very rare andĭo not occur in large quantities. Them to make them more marketable despite the fact that the color is clearly Meaning as a quick search online will show you a huge quantity of sellers allĬalling their merchandise AAA, AAAA or adding a profusion of plus (+) marks to To describe these pieces but honestly, this term seems to have lost most of its Represent less than 1% of Tanzanite production. In terms of rarity, the very fine colors shown in the video Take a look at this simple chart below to see how as This is because their color saturations areĭrops and the stones lose the intensity of the color, the grade drops in Tanzanites from ourĪs you will see from the video, these stones have a very The video below shows what these very fine stones look like. In fact, in the very finest 1% grades, very few carats are Gravitate towards the more vivid colors but also because they occur much more This is not only because humans generally Saturation is basically the depth of color in a stone, inĮssence the level to which color “fills” the stone. Knowledgeable position on Tanzanite color.Ĭolor Saturations and how they Relate to Rarity We will simply explore what it is you need toīe looking for in a fine Tanzanite in terms of color, look at some videos and aĬolor chart and this should be a good grounding in getting you to a ![]() Mechanics of color are actually very simple and for the purposes of thisĪrticle we will not go into technical details as these have been covered Without the smoke and mirrors of grading systems, the Into grading systems in depth if you want to learn more about those. More A's, the more accurate the grade! We have a separate article which goes Where it seems that the more plus (+) signs you add to a made up grade or the Grading systems can confuse the issue as there are so many approaches theseĭays notwithstanding the many invented ones that are prevalent on the web now Technical, I am not going to go into actual grading systems in this article. Whilst color grading systems can appear very complicated and This has been translated into a value system for gemstones, Tanzanite included, whereby the most vivid and deeply saturated colors are more highly coveted.Ĭolor – What to look for in the Finest Grade Humans, for centuries have gravitated towards the deepest colors in gemstones, it is part of our psyche. The rules of color generally follow the laws of nature in that strong, vivid colors are attractors. Tanzanite is no different and color plays a large part in any grading exercise. When talking about Ruby, you hear descriptions like “pigeon’s blood red” to describe the deepest, most valuable colors and with Sapphire you hear “cornflower blue” to describe the finest Sapphire colors, generally from the ancient Kashmir deposit. It is the single most important value factor. ![]() The adage “color is king” applies to Tanzanite, just as it does to all colored gemstones.
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