0.75 Ct. Alexandrite from Ceylon (Sri Lanka)

One beautiful transparent 0.75 carat marquise shape alexandrite is presented by The Natural Gemstone Company, a gem that displays the classic color change from green to purple, dimensions 7.64 x 4.10 x 3.21 mm, mixed brilliant cut, very slightly included clarity when evaluated at eye level, intense color intensity, and an excellent polish. This stone is unenhanced, originating from Ceylon Sri Lanka, which is a recognized source for fine alexandrite material. The marquise outline produces an elegant, elongated profile that sits attractively on a finger or within a pendant, and the mixed brilliant facet arrangement has been executed to maximize both sparkle and color saturation. Photographs under fluorescent lighting reveal the green aspect of the stone, while incandescent lighting emphasizes the purple tone, demonstrating a robust color change that is central to alexandrite appeal.

From a gemological perspective, the clarity designation very slightly included indicates that the stone contains minor, natural inclusions that do not detract from transparency or brilliance when viewed without magnification, qualities that many experienced buyers prefer because they confirm natural origin without compromising aesthetic beauty. The mixed brilliant cut combines a faceted crown with a pavilion designed for light return, creating lively scintillation across the marquise silhouette, and the excellent polish ensures clean facet junctions and minimal surface disturbance to light performance. The intense color intensity is a key grading attribute for alexandrite and directly influences market value, with the vivid green under daylight spectrum and the strong purplish red under incandescent or warm lighting reflecting an ideal chromium driven absorption profile.

Durability and suitability for everyday wear are important considerations when selecting an alexandrite for a ring or other frequently worn jewelry, and chrysoberyl, the mineral species to which alexandrite belongs, ranks at approximately 8.5 on the Mohs hardness scale, offering excellent resistance to scratching in daily use. Beyond hardness, the material exhibits very good toughness and chemical stability, meaning it withstands normal household exposure and retains polish over time when properly cared for. Given the marquise shape, particular attention to point protection is recommended, and a secure setting with prongs that shield the ends or a partial or full bezel will enhance longevity for daily wear. For routine maintenance, gentle cleaning with warm soapy water and a soft brush is effective, and most jewelers advise avoiding harsh chemicals and extreme thermal shock to preserve clarity and polish.

For the informed buyer, this Ceylon alexandrite presents a combination of attributes that justify both aesthetic and investment interest, natural color change, intense saturation, no enhancements, and solid clarity are all factors that elevate desirability within the collector and connoisseur markets. The 0.75 carat weight and marquise format make the gem versatile for bespoke designs, from understated solitaire rings to more elaborate settings that emphasize the color shift, and the mixed brilliant cut delivers lasting brilliance. At The Natural Gemstone Company we present this gem with detailed imagery and accurate descriptions to support confident purchasing decisions, and we welcome questions about mounting options and comparisons with other alexandrite specimens to help match the stone to a client specific design and lifestyle needs.