0.83 Ct. Alexandrite from Ceylon (Sri Lanka)

Whether you are searching for an engagement ring that feels truly rare, or a collector seeking an honest color change alexandrite, this 0.83 carat fancy shape gem from The Natural Gemstone Company answers the call. Measuring 6.82 x 8.19 x 2.02 mm, faceted with a refined step cut and an excellent polish, this transparent alexandrite displays a greenish to orangish color shift, appearing green in fluorescent lighting and warm orangish under incandescent light. Originating from Ceylon Sri Lanka, with no enhancement, medium color intensity, and a clarity grade of slightly included at eye level, it offers natural provenance and reliable durability for everyday wear. The triangular fancy outline makes a contemporary statement on a ring, while the modest weight and profile suit custom settings that showcase the stone rather than overwhelm it.

Its sparkle is rooted in the very structure of chrysoberyl, the mineral species that alexandrite belongs to, where an orthorhombic crystal lattice and the presence of chromium produce the famous color change and a pronounced directional light response. The step cut amplifies that structural behavior by forming broad mirrored facets that channel and reflect light into vivid flashes, so the gem reads as clean, lively, and dramatic as you move it. Strong refractive behavior combined with selective absorption linked to chromium causes different wavelengths to dominate under varying light, creating the sensation of two distinct gemstones in one, and the excellent polish secures crisp facet junctions that translate crystal structure into unmatched sparkle. Slight inclusions do not detract, they confirm natural origin and can produce tiny internal reflections that add depth. For someone seeking a meaningful engagement gem, or a collector who prizes untreated, Ceylon origin material, this alexandrite from The Natural Gemstone Company is a rare find ready to be set into a design that celebrates its unique optical performance.