2.78 Ct. Cabochon Alexandrite from Russia

This 2.78 carat oval alexandrite measures 9.51 x 6.89 x 4.31 mm, it is a cabochon cut designed to emphasize color change and body color rather than faceting brilliance, the gem exhibits true alexandrite behavior with a green to teal appearance in daylight and a rich purple under incandescent lighting, color intensity is graded intense, translucency is described as translucent, polish is excellent producing smooth, well finished reflections across the dome, clarity is graded included at eye level, internal characteristics are visible without magnification and are consistent with natural origin, no enhancement has been applied, provenance is Russia, this specimen presents an ideal balance of size and optical performance for collectors and high end jewelry designers seeking a classic Russian alexandrite.

From a lapidary and gemological perspective, the cabochon form has been executed to maximize the color change phenomenon and to minimize windowing and light leakage, dome height is proportioned to concentrate pleochroic color zones for a strong shift between green and purple, the oval outline at 9.51 x 6.89 mm is well centered and symmetrical which aids in predictable light response when set, the inclusion pattern, while visible at eye level, does not compromise the structural integrity of the stone, chrysoberyl alexandrite is an orthorhombic mineral with a Mohs hardness near 8.5 making it suitable for most types of jewelry with appropriate care, we recommend settings that protect the girdle and cabochon base and that limit exposure to harsh abrasives, The Natural Gemstone Company provides this gem unenhanced and accompanied by detailed images showing the color under daylight and incandescent conditions, for clients who require further documentation we can arrange independent testing or provide additional lighting studies, if you prefer a bespoke mounting plan or wish to compare this piece with other Russian alexandrites in our inventory please contact us and we will supply technical data, additional photographs, and setting recommendations to ensure the piece meets your exact specifications.