This exquisite 0.46-carat natural alexandrite showcases the gemstone's legendary color-changing properties, shifting from lush green in daylight to deep red under incandescent light. Cut in an elegant pear shape with precise faceting, it measures 5.1 x 3.9 x 3.1 mm and features VS clarity with only very slight inclusions invisible to the naked eye. Completely natural and unheated, this untreated stone represents the pinnacle of alexandrite's rare optical phenomenon—a collector's treasure and a sophisticated choice for bespoke jewelry design.