Grading Tanzanite. Color is the most important Tanzanite has a unique and special color quality. Discovered in 1967 in Tanzania by local herders and brought to market by a tailor and part time prospector Manuel de Sousa. Tanzanite has a unique and special color quality. You should not expect to find intensely saturated blue tanzanites weighing less than 2.50 carats.The color of a fine, 1.00 carat tanzanite is likely - at its darkest - to be a medium blue or GIA 5/5. CONSIDER A PROTECTIVE SETTING. Color is the most important. Tanzanite's color can be a very bright, intense blue. Cut Tanzanite is available in a wide range of shapes but cushion and oval cuts are most common. Tanzanite is the violet to blue (blue or purple mainly) form of the mineral zoisite. Depending on the crystal orientation, the gem can appear blue, violet, or burgundy. Tanzanite is graded according to the 4 C's; Color, Cut, Clarity and Carat Weight. Tanzanite's color can be a very bright, intense blue. Carat Weight Tanzanite's color blends blue hue and violet pleochroic hues. They include green, blue-green, golden, orange, pink and purple. The higher the combination of these characteristics; the rarer and more valuable the tanzanite stone. Note: in the rare circumstance that intensity of color exceeds the Exceptional grade, it will be graded Exceptional. It can appear in various shades of blue, purple or even red depending on its orientation. Tanzanite, the most-prized color is a pure blue, similar to fine sapphire, or an intense violet-blue all its own. Tanzanite Grading Tanzanite is a stunning pinkish blue gemstone discovered in Tanzania 50 years ago. It can also appear differently when viewed in various lighting conditions. Typically, tanzanite color grading is spread into a range of hues from violet blue to blue violet and based on tone and saturation of color. As well as the beautiful indigo purple hues that Tanzanite is famous for, there is an even rarer variety that features a mix of the classic shades alongside a light, delicate minty green hue too. In exceptional tanzanites, the color is an intense violetish blue with red flashes of pleochroic color coming from within the stone. See our Collection of Fine Tanzanite Tiffany and company gave the name "tanzanite" to this gem. Due to the gem's strong pleochroism, fashioned examples typically show a mix of both blue and violet colors in a wide range of tones. In a similar way to diamonds, tanzanite is graded according to the 4C's. The 4 C's stand for : Color, Clarity, Cut and Carat weight. Tanzanite is unique in that it changes colors depending on the light. Discovered in 1967 in Tanzania by local herders and brought to market by a tailor and part time prospector Manuel de Sousa. Small accent stones that are less than a carat are commonly a lighter color. Tanzanite also appears a different color when viewed from different angles, as it is pleochroic in nature. Most tanzanite has a light to medium tone and low to medium saturation. The finest stones are flawless whilst lower grade stones will contain various natural inclusions such as needles, feathers, and included crystals. In general terms, the cleaner, less included the Tanzanite the finer the quality. The two rings at the top of the image are examples. The Gemological Institute of America is one of the world's most respected authorities on colored gemstones and Diamonds. TANZANITE COLOUR When grading white diamonds, the whiter the stone, the higher the value. bV "blueish Violet" means that the gemstone's dominant color is Violet. But how can you tell if you're buying . If you are a connoisseur of fine gems, you'll probably be most interested in obtaining and owning the rarest grade of tanzanite - often called "investment . Tanzanite is known to help improve mental strength and transform destructive thoughts into constructive ones. Purple is a modified spectral hue that lies halfway between red and blue. The grading standard for all colored gems and Diamonds is North Daylight Equivalent which is around 5,500 kelvin. With Tanzanite clarity grading, common sense prevails. Tanzanite is graded according to the 4 C's; Color, Cut, Clarity and Carat Weight. The higher the combination of these characteristics; the rarer and more valuable the tanzanite stone. Tanzanite Grading System considers the 4 C's (Color, Carat Weight, Cut, and Clarity) like those used by The Gemological Institute of America. Other than color, cut, size, and clarity also has a significant effect on the price. July 4, 2020. Top Tanzanite is perfect to make high-quality jewelry and loose gemstones. Check below some recommended Tanzanite loose stones . Hidden deep in the bedrock near the Merelani Hills in Arusha, Tanzania, is found one of the rarest gems in the world. Deep saturated violet blue or blue violet are the most valuable tanzanite colors. The two rings at the top of the image are examples. This is because there is no universal scale for grading colored gems. TANZANITE COLOUR. Tiffany and company gave the name "tanzanite" to this gem. Gemologists using the GIA Colored Stone Grading Scale will grade fine-colored tanzanite as "GIA 5/6". Tanzanite is famed for its pleochroism - the ability to show more than one colour in different directions through the stone - in this case, blue is the primary colour, with beautiful flashes of pink. When you add a fine cut to a moderate color it can be a gem of great beauty. Tanzanite usually has to be large to reach a deep saturated blue or purple. Its rich and vibrant color is highly valued and universally appreciated. Tanzanite appears to be differently colored when viewed from a different crystallographic direction. East Africa remains the only source for this gems and the supply of high grade material is limited. Tanzanite is usually regarded as being of a bluey-violet hue, but it actually has a strong trichroism. Clarity Eye-visible inclusions decrease the value of tanzanite, particularly in lighter colored stones. Top Tanzanite is perfect to make high-quality jewelry and loose gemstones. Tanzanite gems with a strong-to-vivid blue, purplish blue and violetish blue color are the most valuable. In general terms, the cleaner, less included the Tanzanite the finer the quality. The more eye visible they are the lesser the grade. Tanzanite Grading. In any shade, pale colors are less prized than saturated ones. The color is the most important factor in determining the price. This video explains how Trichroism works and will give you a good understanding of why the different axes of color affect the way a Tanzanite appears to the eye under different lighting conditions. In contrast, when it comes to coloured gemstones, the more intense or saturated the colour, the more rare the stone, and the higher its value. Purple is a modified spectral hue that lies halfway between red and blue. The first color listed is the modifier and the second color listed is the primary color. BUYING TANZANITE : THE 4 C'S . This fluidity and shifting of color is believed to facilitate a raised level of consciousness. Tanzanite appears to be differently colored when viewed from a different crystallographic direction. Poised between lush blue, vibrant violet, and rich purple, exotic tanzanite is found in only one place on earth, near majestic Mount Kilimanjaro. Tanzanite; Buying The Rare Gem at its Source. Celebrated for its color that captures the blue of the ocean with shades of the midnight sky and flashes of violet, tanzanite's blue and violet color combination is unique. As with pure blue Tanzanite stones, Bi-Color Tanzanite looks stunning set into any of the precious metals. The new system's color-grading scales divide tanzanite colors into a range of hues, between bluish-violet, indigo and violetish-blue. The results are utterly breathtaking. Tanzanite. The depth of color or tone is the relative lightness or darkness of a hue ranging from Intense to Faint by HKD Laboratories. Its rich and vibrant color is highly valued and universally appreciated. From the mines to the most delicate hand, the craftsmanship of the Tanzanite stone is deeply rooted in […] READ MORE. This crystal shows strong blue and brownish green pleochroic colors. Stones that have a light color are considered . These rich colors are the most appealing to the majority of people shopping for tanzanite. It is a calcium alumina hydroxy silicate. Tanzanite is a birthstone for December, along with two other blue gems; Turquoise and Zircon. It's bluer under fluorescent light and more violet under incandescent light, and you can also see shades of red and brown in it. Tanzanite, a rare violet-blue form of the mineral zoisite, was first discovered in 1967 in Tanzania. The system works by breaking down Tanzanite color into 3 distinct components, Hue, Tone and Saturation and then compiling a 3 part . These rare unheated tanzanites are graded according to the purity of color. Gemologists using the GIA Colored Stone Grading Scale will grade fine-colored tanzanite as "GIA 5/6". When heated, tanzanite emits only two colors- blue and violet, and the hue specifications range between blue-violet to violet-blue. Tanzanite Color Grading Scale. Remember, when tanzanite is extracted from the earth, it typically is more of a reddish-brown color, quite unlike the deep blue-violet gems you find for sale. Color Grading in this system The system works by breaking down Tanzanite color into 3 distinct components, Hue, Tone and Saturation and then compiling a 3 part grade. YouTube. TANZANITE TIPS AND ADVICE SIZE AND COLOR ARE RELATED. Finally, one more complexity that you will encounter while shopping for tanzanite is confusion regarding color gradings. Buyer Beware! Tanzanite is famed for its pleochroism - the ability to show more than one colour in different directions through the stone - in this case, blue is the primary colour, with beautiful flashes of pink. With Tanzanite clarity grading, common sense prevails. Tanzanite with a bluish purple bodycolor is also popular, but less valuable. With a hardness of 6 to 7 The higher combination of these ratings, the more valuable the tanzanite. The GIA Grading System. The grade is scientifically based on a researched color wheel, seen further in the article and there are 3 components. See our entire line of tanzanite colors. A high-quality tanzanite stone should be deep blue/dark violet. While the deeper colors have greater value, tanzanite with moderate to light colors is still desirable, and sometimes preferred by certain consumers. Learn more. Tanzanite Grading and Value. This color grading system and chart was developed by the Tanzanite Foundation, www.tanzanitefoundation.org The color quality is based on the degree of saturation with greater value placed on gems with greater saturation. Color Grading in this system. Tanzanite Color Grading. In contrast, when it comes to coloured gemstones, the more intense or saturated the colour, the more rare the stone, and the higher its value. Color or hue is the shade or tint referring to the blue in tanzanite and its degree of violet saturation in tanzanite color grading. Tanzanite. Tanzanite gems with a strong-to-vivid blue, purplish blue and violetish blue color are the most valuable. Normally, tanzanite color grading is spread into a range of hues, between blue violet and violet blue. But in its raw state, tanzanite is a reddish-brown color. It is a calcium alumina hydroxy silicate. These rich colors are the most appealing to the majority of people shopping for tanzanite. If a tanzanite is 51% blue under white light, it will be graded as blue dominant - even if the same stone may change to predominately violet under yellow light as a result of tanzanite's pleochrism. When heated, tanzanite emits only two colors- blue and violet, and the hue specifications range between blue-violet to violet-blue. Tanzanite has what many would consider the finest blue hue in the world of gemstones. Consumers should be wary of online retailers selling smaller stones (between 0.50 to 2.50 carats) as "investment grade" or GIA 6/6. Tanzanite has what many would consider the finest blue hue in the world of gemstones. Grading Tanzanite. Most tanzanite has a light to medium tone and low to medium saturation. These stones may actually exhibit a whole rainbow of colors from different angles: red, green, brown, yellow, blue, violet, and more. Tanzanite's most-prized colors are a strongly saturated pure blue or violetish blue. Typically, tanzanite color grading is spread into a range of hues from violet blue to blue violet and based on tone and saturation of color. The normal primary and secondary hues in tanzanite are blue and violet. Tanzanite's rich hues rival sapphire's beauty. Its Diamond grading system is the most universally accepted and widely used worldwide. Color Color or hue is the shade or tint referring to the blue in tanzanite and its degree of violet saturation in tanzanite color grading. The higher combination of these ratings, the more valuable the tanzanite. Decembers Birthstone. Blue Violet Color Grades Violet Blue Color Grades Please let us know if you have any questions about the tanzanite color grading chart. When grading white diamonds, the whiter the stone, the higher the value. As a result, you may encounter a number of different grading scales. The limited supply, combined with strong marketing, has resulting in high prices, sometimes as much as $1,000 per carat. A tanzanite's dominant hue is decided by gemologist using white light. Tanzanite is a stunning pinkish blue gemstone discovered in Tanzania 50 years ago. Tanzanite appears bluer during the daylight, whereas at night, in incandescent light, you can see the red flashes throughout the stone. Vivid fancies are very rare and coveted by collectors. Normally, tanzanite color grading is spread into a range of hues, between blue violet and violet blue. Tanzanite is the violet to blue (blue or purple mainly) form of the mineral zoisite. Paler hues are more commonly found. 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