1.18 Ct. Alexandrite from Ceylon (Sri Lanka)

This alexandrite offered by The Natural Gemstone Company is a finely proportioned, transparent 1.18 carat oval measuring 7.18 by 6.05 by 3.33 millimeters, cut in a mixed brilliant style to balance table brilliance and face-up dispersion. Its most compelling attribute is the classic alexandrite color change, presenting a yellowish green appearance in daylight and fluoresced lighting, shifting to a reddish brown under incandescent conditions. This distinctive chromatic response is the defining hallmark of true alexandrite and is a function of the stone’s trace element chemistry and selective light absorption, most commonly associated with chromium activators in the corundum family. The material exhibits intense color intensity, which in a well-cut, small-to-medium-sized stone such as this significantly enhances visual impact and desirability. Photographic views under fluorescent and incandescent illumination demonstrate the pronounced change, and the oval outline and mixed brilliant faceting produce a lively and measurable interplay of color across the table and pavilion facets.

From a connoisseur’s perspective the clarity and cutting quality are especially important. This gem is graded as very slightly included when evaluated at eye level, a practical and buyer-oriented assessment that means the stone appears clean to the unaided eye in normal viewing conditions while retaining natural internal characteristics that confirm its authenticity. Very slightly included material in alexandrite is often preferable to completely inclusion-free samples because minor inclusions can serve as fingerprint evidence of natural origin, whereas too-perfect clarity in colored stones may suggest treated or synthetic material. The mixed brilliant cut here has been executed to excellent polish standards, maximizing light return while preserving the distinct color-change phenomenon; the pavilion depth and table size, given the stated dimensions and 3.33 millimeter depth, reflect a cutter’s intent to balance brilliance and optimal color saturation. These technical details are meaningful to educated buyers who weigh optical performance against carat size and prefer stones that are both visually arresting and technically sound.

Equally important to the sophisticated buyer is the absence of enhancements. This alexandrite is offered with no enhancements, meaning it has not been subjected to heat treatment, diffusion, coating, or other color-altering processes, and its color-change characteristics are natural. Unenhanced alexandrite, especially with intense color, is far less common and typically commands a premium because its beauty is intrinsic rather than manufactured. Origin plays a critical role in valuation and historical context. This piece is from Ceylon, Sri Lanka, a long-established source of gem corundums and chrysoberyls. While Russia’s historic deposits gave alexandrite its name and early fame, Ceylon has produced many highly attractive stones with strong color-change properties; provenance from Sri Lanka is widely respected among connoisseurs and can influence both desirability and market perception. For investment-grade or heirloom-quality purchases I recommend pairing the visual inspection with independent gemological confirmation from a recognized laboratory, which can provide an objective report on origin, natural state, and any treatments.

At The Natural Gemstone Company we prioritize ethical sourcing practices as a core part of our offering, because informed buyers increasingly value provenance and the social and environmental context of their purchases. This alexandrite was sourced from Sri Lanka through a vetted supply chain that emphasizes transparency, compliance with local mining regulations, and partnerships with small-scale miners and trusted dealers who operate with respect for community welfare. We work to ensure traceability to origin where possible and to support sourcing channels that minimize negative environmental impact. For conscious consumers, an untreated, naturally color-changing alexandrite from a responsible supplier offers both aesthetic satisfaction and the reassurance that their purchase aligns with broader sustainability and ethical values. While gem origins and supply chains in the natural gem market can be complex, we provide clear documentation about origin and treatment status and are available to discuss our sourcing practices in detail with clients who require deeper assurance.

Practical considerations for setting, wear, and long-term care are also important to preserve the value and beauty of this stone. At 1.18 carats and with an appealing oval silhouette, this alexandrite is an excellent candidate for a bespoke ring, solitaire pendant, or a fine pair of earrings when matched, and the mixed brilliant cut will present attractively in both closed and open settings. Alexandrite has good hardness and durability for everyday wear, but like all colored gemstones it benefits from prudent care: avoid harsh chemical exposure and extreme thermal shock, clean with mild detergent and warm water or with a jeweler’s ultrasonic cleaner only if no significant inclusions are present that could trap fluids, and have settings inspected periodically to ensure prongs and bezels remain secure. For buyers considering this piece as an addition to a conscious investment collection, we recommend requesting a professional appraisal and a gemological report to accompany the stone for insurance and resale considerations. The Natural Gemstone Company stands ready to assist with mounting options, independent certification referrals, and detailed provenance information so that your acquisition is both beautiful and responsibly acquired.