2.06 Ct. Alexandrite from Tanzania

This alexandrite from Tanzania is a transparent, natural specimen weighing 2.06 carats, presented in an elegant oval shape with dimensions of 8.04 x 6.84 x 4.21 millimeters. The gem has been faceted in a mixed brilliant cut, combining a faceted crown and a pavilion geometry that enhances light performance. Clarity is graded as very slightly included when evaluated at eye level, and the stone displays an intense color intensity with an excellent polish. There has been no enhancement to the material, and the origin is Tanzania, verified by our sourcing records at The Natural Gemstone Company. The combination of weight, cut and finish produces balanced proportions that are well suited to fine jewelry settings where both presence and optical performance are required.

The exceptional sparkle of this alexandrite arises from an intrinsic combination of material properties and careful lapidary work. As a chrysoberyl variety containing chromium, alexandrite has a naturally high refractive index and meaningful dispersion, properties that translate into strong brilliance and precise separation of light into flashes. The mixed brilliant cut on this oval form is specifically chosen to capitalize on those optical constants, with crown facets designed to admit and refract light, and pavilion facets arranged to maximize internal reflection and return light to the viewer. The excellent polish minimizes surface scattering, allowing facet junctions to act as crisp mirrors, while the very slight inclusions present do not disrupt light paths in a manner that would diminish overall brightness. Together these elements produce uniform light return, pronounced scintillation, and the crisp contrast necessary for vivid sparkle in close view and in motion.

Beyond static brilliance, this alexandrite exhibits a dynamic interaction between color and light that enhances perceived sparkle in ways that many other gemstones cannot match. The chromium related selective absorption that produces the classic alexandrite color shift also affects how light is reflected and absorbed by individual facets, creating shifting areas of greenish tone and brownish tone as illumination changes. Under cooler, fluorescent lighting the gem appears more greenish, and under warmer, incandescent lighting it shifts toward brownish hues, a property that results in striking internal contrast as the wearer moves through different environments. The mixed brilliant cut amplifies this effect by creating alternating bright flashes and darker color zones, a lively interplay that reads as depth and liveliness to the eye. For clients seeking a gem that is both technically well executed and visually compelling, this Tanzanian alexandrite from The Natural Gemstone Company offers a refined specimen, with natural origin, no enhancement, and optical performance that rewards examination and inspires confident design decisions in bespoke jewelry.