The most significant alexandrite discoveries of the late 20th century. This 21-carat crystal belongs to an elite tier of historical yields, where size does not compromise the optical integrity. Rectilinear geometry enhances its pleochroic nature, a structural phenomenon documented in rough that commands global auction attention.

A 21-carat octagonal-cut natural, unheated Alexandrite, demonstrating a Yellowish Green to Brownish Yellow color change, verified by GIA. This color configuration displays an exceptional level of chromium-iron balance, resulting in a high-contrast hue transition rare in stones over twenty carats. The absence of thermal enhancement guarantees the specimen's mineralogical integrity and long-term liquidity in the high-net-worth market. The GIA standard certification validates both the geographical origin and the natural state of the crystal. JUSTLEE acquires exclusively those rare museum-grade gemstones that define generational wealth. Available for private viewing by appointment.

Product Type	Alexandrite
Color	Yellowish Green Changing To Brownish Yellow
Certificate	GIA
Processed (Yes/No)	No indication of thermal treatment
Cut	Octagonal
Carat Weight	21ct