Alexandrite ring 3D print model

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Alexandrite "Emerald by day, ruby by night," Alexandrite stands out in the gem world for its extraordinary color transformation - displaying vibrant green in sunlight and deep red under incandescent light. Though the modern June birthstone is highly valued, natural Alexandrites are extremely rare and costly, making them difficult to acquire as jewelry stones. Alexandrite's two key factors that determine their worth include the degree of pure green and red colors present and how distinctly its color changes. Some high-end alexandrites show 100% transformation from green to red, while others may exhibit only a 5% change in hue, rendering them less valuable overall. Colors ranging from 100% to just 5% reveal distinct variations in alexandrite values - the more significant the change from pure green to pure red, the higher the value of the gemstone. Variations such as blue-green and purplish or brownish red tend to hold lower values compared to the most valuable ones displaying a clear transformation. Natural Alexandrites from the Ural Mountains of Russia demonstrate an extraordinary display of color - exhibiting vibrant crimson in the evening under incandescent light, shifting to bright green when exposed to daylight. Image by Salexmccoy; licensed under CC By-SA 3.0. As with most gemstones, clarity plays a significant role in determining their worth - natural alexandrites rarely have the quality of clean, facetable material required for cabbing. Despite this limitation, its remarkable color transformation plays an even more crucial factor when assessing value than its transparency or cleanliness. For example, compare two identical-sized Alexandrites with varying characteristics - one gem is virtually eye-clean but only has a 50% greenish blue to brownish red color change while the other, though opaque, displays a clear 100% transformation from green to red, proving that clarity plays second fiddle to its extraordinary ability to change hues. The value of alexandrites increases significantly with size. Take, for instance, the case of a small-sized top-quality natural gemstone which could cost upwards of $15,000 per carat; whereas gems measuring more than one carat might fetch anywhere between $50,000 to an astonishing $70,000 per carat! To delve deeper into understanding these precious stones and their varying values, refer to our comprehensive Alexandrite buying guide for detailed information. Here's an impressive example - an oval-cut alexandrite displaying 100% transformation, from a bright blue-green under daylight to an intense 'plum' red in incandescent light. Weighing 0.35 cts and measuring 5.1 x 4.2 mm in size, this magnificent gemstone is truly impressive, making it no surprise why it stands out as one of the finest Alexandrite pieces in the world. — Source - iRocks.com (used with permission)