1.30 Ct. Cabochon Alexandrite from Russia

One beautiful transparent 1.30 carat oval shape alexandrite is presented here, with precise dimensions of 7.90 x 5.45 x 2.94 mm, a cabochon cut, and a clarity grade of included as evaluated at eye level, medium intense color intensity, and an excellent polish, enhancement none, origin Russia. These concise technical details describe the material that collectors and connoisseurs prize, and they establish the factual baseline for assessing the gem. The cabochon form was selected to maximize the visibility and character of the alexandrite color change phenomenon. In cabochon form, light interacts with the stone in a way that often deepens apparent saturation, and this is especially useful with a transparent specimen that carries internal structure and inclusions. The weight of 1.30 carat together with the oval proportions creates a balanced face up size that is substantial enough for a striking ring or pendant, while the 2.94 mm depth maintains good optical performance for a cabochon, avoiding an overly thin or excessively domed profile.

The color change from green to purple is the defining trait of alexandrite, and this gem offers a medium intense color response that reads green in daylight and a purplish violet under incandescent lighting. Gemologically, the color change effect in alexandrite arises from chromium as the primary chromophore, modulating the absorption of different spectral regions of light, and the Russian origin places this piece in a notable historical and mineralogical context. Russian alexandrites, historically sourced from the Ural Mountains, are celebrated for their classic and often dramatic color change, and stones from that region remain highly sought after for their provenance. The medium intense category indicates that the color change is clear and noticeable without being extreme, which can be an advantage for wearable jewelry where dramatic shifts may appear too contrastive under mixed lighting. The photos included show the distinct appearance under daylight calibrated imaging and under incandescent illumination, underlining the reliability of the color change and demonstrating how the stone will perform in everyday environments, from outdoor daylight to warm indoor lighting.

Included clarity at eye level is common in natural alexandrite and should be understood as part of the gem’s natural character, rather than a defect that diminishes desirability. Inclusions in alexandrite frequently present as fine needles, growth tubes, or mineral crystals, and when they are not disruptive to transparency they can actually serve as internal fingerprints that help to confirm natural origin. In this stone the inclusions are visible to an experienced observer at eye level, but the gem remains transparent and the light transmission is sufficient to permit clear color change and attractive depth. The excellent polish on the cabochon surface is significant because it facilitates an even sheen and smooth visual field, allowing the color shift to read cleanly across the dome. No enhancement treatment has been applied to this stone, which is an important factor for collectors and buyers who place a premium on untreated, natural material. An absence of treatment means that the color, clarity, and intrinsic optical properties are wholly natural, and this is often reflected in both aesthetic appeal and long term value stability.

For the educated buyer, this Russian cabochon alexandrite represents a combination of gemological interest, historical provenance, and practical wearability. Russian alexandrites are rarer on the market than many other localities, and a transparent, untreated cabochon of 1.30 carat is a versatile specimen that can serve as a centerpiece in bespoke jewelry or as a collectible in a gem cabinet. Suitably set in a bezel or low prong mount, the cabochon will be protected from knocks and will display its color change with every change of lighting environment, making it an engaging everyday gem. From an investment and collection standpoint, provenance and treatment status are key variables, and this stone’s Russian origin coupled with no enhancement provides clear attributes that informed buyers recognize and reward. The Natural Gemstone Company stands behind the description, and we provide full disclosure of measurements, grading observations, and origin information to support confident acquisition. For care, avoid prolonged exposure to harsh chemicals and extreme heat, clean gently with warm soapy water and a soft brush, and service settings periodically to maintain security. If you would like a formal report or additional photographs under specified lighting, The Natural Gemstone Company can arrange supplementary documentation and imaging, and our staff can advise on mounting options that will best showcase the color change while protecting the cabochon during daily wear.