2.78 Ct. Emerald from Zambia

This specimen is a transparent, well proportioned green emerald weighing 2.78 carat, presented in a classic emerald cut and finished as a faceted gemstone. Dimensions are 9.12 by 7.05 by 5.44 millimeters, which yields a depth of approximately 67.3 percent based on the average of length and width. The cutting style is step faceting characteristic of the emerald cut, with broad table and concentric crown and pavilion steps that emphasize color depth and plane reflections rather than brilliant scintillation. Clarity is graded slightly included when evaluated at eye level, indicating the presence of typical internal features or jardin that are visible without magnification but do not materially compromise transparency. Color intensity is classified as intense, showing saturated medium to deep green with the characteristic Zambian tone. Origin is Zambia, enhancement is standard, and polish is excellent, with crisp facet junctions and uniform facet planes that contribute to clean light return for a step cut of this grade. This description and provenance are provided by The Natural Emerald Company.

From a cutting and lapidary perspective this emerald demonstrates deliberate material optimization. The emerald cut was executed to preserve weight while maximizing the stone face and color saturation, which is advantageous for Zambian material that often displays a slightly cool to neutral bluish green that responds well to controlled depth. The step faceting layout produces large, flat facets on the crown and pavilion which act as color windows, concentrating the hue and allowing the eye to register depth of tone. The excellent polish indicates careful final lap work, producing smooth facet planes and well defined facet junctions that reduce surface diffusion and help maintain a clean visual field despite the inclusion pattern. Slightly included clarity at face up means inclusions are present but well distributed and stable, allowing the cutter to orient the stone to conceal disruptive features while preserving weight. The 2.78 carat weight combined with the stated dimensions results in a robust face up presence suitable for a bold solitaire or an elegant halo setting where the step cut can be displayed without excessive mechanical exposure.

Durability and care considerations are essential for informed acquisition. Gemologically, emerald is a member of the beryl family and registers approximately 7.5 to 8 on the Mohs scale of hardness, which places it harder than quartz and softer than corundum and diamond. In practice this hardness rating indicates good resistance to abrasion in normal wear, but toughness is often reduced in natural emeralds due to internal fissures and inclusions, so the stone is more brittle than its hardness alone suggests. Because this emerald has undergone standard enhancement, commonly cedar oil or similar refractive index filling, cleaning and mounting protocols should be conservative. Avoid ultrasonic cleaners and steam cleaning, and use warm soapy water and a soft brush for routine maintenance. For daily wear choose protective mounting styles such as full or partial bezel settings, low profile rub over mounts, or designs that incorporate guardian prongs or halo elements to shield the girdle and corners. Periodic re treatment or re oiling may be desirable to maintain optimum appearance, and The Natural Emerald Company can advise on professional re treatment and setting options. For customers seeking a comprehensive technical dossier or custom setting consultation, The Natural Emerald Company provides detailed reports and bespoke mounting services to ensure the stone performs aesthetically and mechanically in long term wear.