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What is the most expensive color of alexandrite?

Alexandrite is a jewelry stone that has been known to people for only less than two centuries. It was first found in 1830 in Russia, in the Urals. The name of the stone was given on the occasion of the coming of age of the future Tsar of Russia Alexander II. Alexandrites were very popular at the end of the 19th century in the highest circles of Russian society. Alexandrite is a type of the mineral chrysoberyl. Natural alexandrites, along with rubies, sapphires, emeralds and diamonds, belong to a special “top” category of precious stones. These are some of the rarest and most expensive stones in the world. Why are alexandrites valued? Let’s consider the factors that affect the beauty and cost of alexandrite. One important factor is rarity. There are very few Alexandrites on the world market. There are significantly fewer of them than the number of rubies, sapphires or emeralds. Nowadays, it is quite problematic to find good quality natural alexandrite larger than 2 carats on sale. The main problem is to find alexandrite so that its color is attractive.

Alexandrite color

Natural alexandrites, in addition to their rarity, have become especially famous for their unique color-changing effect – alexandrites change color depending on the type of lighting. This effect was called the “Alexandrite effect” in honor of alexandrites. What color are alexandrites? In daylight (white) light, alexandrites have greenish tints of color, and in incandescent light (yellow light) they change to shades of red or pink, purple. The degree of color change in alexandrites is called reversal and can be measured as a percentage (e.g. 25%, 50%, 100%). Stones with 100% reverse are the most valuable and are extremely rare. Alexandrites are also characterized by strong pleochroism, when different colors can be observed in the stone at different angles. For example, red, yellowish-orange and green. The color of alexandrite is the main factor influencing the perception of its beauty. In daylight, the most valuable colors of alexandrite are green and bluish-green. The yellowish-green color of alexandrite is considered less valuable. Under incandescent light, the most expensive color will be red without additional shades. Alexandrites can also be red with a purple or orange tint. Purple-hued alexandrites can be found in Brazil and Tanzania. Please note that almost all alexandrites with a good color change, even very expensive ones, are dark. And the rich colors in these stones can only be seen in bright light (for example, with the directional light of a flashlight with a “white” or “yellow” light). If we don’t specifically shine light on the stone, we can often observe a not very attractive color of alexandrite, for example, brown with slight shades of pink or green. Alexandrite that changes color from bright green to bright red (not purple) is more of a myth than a reality. Photo on the left: the manifestation of different colors in alexandrite from Tanzania weighing 5,19 carats Finding beautifully colored cut alexandrite is a very difficult task. Only a very small proportion of alexandrites in “everyday” lighting will have good color. What color is it? Xandrites look in photographs, often embellished, so you should not completely trust colorful photos in books and the Internet. When photographing, the color of alexandrites is often distorted, resulting in different shades than we see in reality. Therefore, photographs of alexandrites usually “turn out” more green or red in the photo editor. At the same time, stones in photographs often turn out quite beautiful. In real life, these alexandrites can differ significantly from the color you saw in the photograph. Photo on the right: 6,18 carat alexandrite under a gemological lamp (top) and under a “yellow” flashlight light (bottom) ” Practical advice. When buying alexandrite, first of all, pay attention to the color of the stone in different lighting conditions. The most important thing here is that you like the colors you observe. Rock the stone in tweezers or in your hands, looking at it from the side of the platform. Appreciate the colors of alexandrite (and its reverse) under various lamps, daylight near a window or outdoors, and under an incandescent lamp. You can use different flashlights with “white” and “yellow” light. Pay attention to how light or dark the alexandrite you have chosen is, as well as its saturation, color distribution throughout the entire volume of the stone and additional color shades. You can look at the color of the stone under mixed lighting, using two types of light sources at the same time. The beauty of a stone depends very much on its color.”

Purity of Alexandrite

The next factor is the purity of the alexandrite. The alexandrite gemstone is classified as a type of stone that typically contains a small number of inclusions and cracks. Gas-liquid veils usually act as inclusions. Absolutely pure alexandrites, without inclusions or cracks, are quite rare in nature. Opaque alexandrites are usually used to make cabochons.
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Alexandrite weight

The mass of the stone is the next factor. The larger the natural alexandrite, the higher its cost per carat will be. Because The rarity factor plays a role here: large stones are less common than small ones. Alexandrites weighing less than 2 carats are mainly presented on the world market. Those alexandrites that weigh more than 5 carats usually come from Sri Lanka. More interesting facts about stones on our website Gem Lovers Alexandrite is a jewelry stone that has been known to people for only less than two centuries. It was first found in 1830 in Russia, in the Urals. It is a type of the mineral chrysoberyl. The name of the stone was given on the occasion of the coming of age of the future Tsar of Russia Alexander II. Alexandrites were very popular at the end of the 19th century in the highest circles of Russian society. Together with rubies, sapphires, emeralds, and diamonds, they are classified as a special “top” category of the rarest and most expensive precious stones in the world. Why are alexandrites valued? There are very few of them on the world market, much less than rubies, sapphires or emeralds. Let’s consider the factors that affect beauty and cost. One of them is rarity. Nowadays, it is quite problematic to find a natural specimen of good quality over 2 carats for sale. The main problem is to find alexandrite such that its color is attractive.

Color

Natural alexandrites, in addition to their rarity, have become especially famous for their unique color-changing effect – they change color depending on the type of lighting. This effect is known as “Alexandrite”. In daylight (white) light, alexandrites have greenish tints, and in incandescent light (yellow), they change to shades of red or pink, purple. The degree of color change in alexandrites is called reversal and can be measured as a percentage (e.g. 25%, 50%, 100%). Stones with 100% reverse are the most valuable and are extremely rare. Strong pleochroism is also characteristic, when different tones can be observed in the stone at different angles. For example, red, yellowish-orange and green. The color of alexandrite is the main factor influencing the perception of its beauty. In daylight, the most valuable colors are green and bluish-green. The yellowish-green color of alexandrite is considered less valuable. Under incandescent light, the most expensive color will be red without additional shades. Additionally, alexandrites can be red with a purple or orange tint. Purple-hued alexandrites can be found in Brazil and Tanzania. It should be borne in mind that almost all alexandrites with a good change, even very expensive ones, are dark. And saturated colors can only be seen in bright light (for example, with the directional light of a flashlight with a “white” or “yellow” light). If we don’t specifically shine light on the stone, we can often observe an inexpressive color, for example, brown with slight shades of pink or green. A stone that changes color from bright green to bright red (not purple) is more of a myth than a reality. Pictured left: the development of different colors in a 5,19 carat sample from Tanzania Finding beautifully colored cut alexandrite is a very difficult task. Only a very small proportion of specimens in “everyday” lighting will have good color. The color of alexandrites in photographs is often embellished, so you should not completely trust colorful photos in books and on the Internet. When taking photographs, color is often distorted, resulting in different shades than we see in reality. Therefore, photographs of alexandrites in most cases later “turn out” more green or red in the photo editor. At the same time, stones in photographs often turn out quite beautiful. In real life, these alexandrites can differ significantly from the color you saw in the photograph. Photo on the right: alexandrite 6,18 ct under a gemological lamp (top) and under a “yellow” flashlight light (bottom) “ Practical advice. When purchasing alexandrite, first look at the color under different lighting conditions. The most important thing in this case is that you like the colors you observe. Rock the stone in tweezers or in your hands, looking at it from the side of the platform. Evaluate the colors and reverse under various lamps, during the day near a window or outside, and under an incandescent lamp. You can use different flashlights with “white” and “yellow” light. Note for yourself how light or dark the specimen you have chosen is, as well as its saturation, color distribution throughout the entire volume of the stone and additional color shades. You can look at the color of the stone under mixed lighting, using two types of light sources at the same time. The beauty of a stone depends very much on its color.”

Cleanliness

The next evaluation factor is the purity of alexandrite. This gemstone is classified as a type that is characterized by not having a very large number of inclusions and cracks. It is characterized by gas-liquid veils. Absolutely pure specimens, without internal heterogeneities, are quite rare in nature. Opaque alexandrites are used to make cabochons. In the video: dark alexandrite, in which inclusions are not visible, 10,23 ct, origin Sri Lanka “Practical advice. After you have assessed the color of alexandrite, assess its purity. Make sure the sample is well rubbed and has no surface contamination on the edges. First check cleanliness with the naked eye. Are any visible cracks or inclusions? It is advisable that they should not be in the center of the cut stone. See if defects have a significant impact on overall attractiveness? Then, you can look at the transparency of alexandrite with a 10x triplet magnifying glass for a more thorough analysis. At the same time, pay attention to whether there are any significant cracks in the sample that extend to its surface. Their presence may affect durability.“

Weight

The mass of the stone is the next factor. The larger the natural alexandrite, the higher its cost per carat will be. Because here the rarity factor already influences: stones of significant size are found less often than small ones. Alexandrites weighing less than 2 ct are mainly presented on the world market. Alexandrites over 5 carats usually come from Sri Lanka. “Practical advice. You can roughly estimate how faceted alexandrite will look when mounted in a product. To do this, you need to place the stone on top of your fingers. Shake your palm in different lighting and appreciate the overall attractiveness of alexandrite. Do you like him or not? In the same way, by placing several samples on your fingers at the same time, you can compare them to choose the best one.” On video: large natural alexandrite with good clarity, 14,77 ct – In the second part of the article, we will consider factors such as cutting, its deposits, the presence of refinement and a certificate, including those affecting the cost. We’ll also tell you about its varieties.
– In the third part of the article we will show you real prices per carat.

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