3.13 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 3.13 carat emerald cut blue sapphire measures 9.85 by 7.10 by 4.67 mm. The stone presents a vivid color intensity, an excellent polish, and a clarity grade of very very slightly included, evaluated at eye level. The sapphire originates from Ceylon, Sri Lanka, and has undergone standard heat treatment to stabilize and enhance its natural color. The emerald cut emphasizes the gem s crystalline structure and creates a refined profile suited to a range of settings. The dimensions and weight reflect a well proportioned cut, and the combination of transparency and polish allows the sapphire s vivid blue to read cleanly in varied lighting conditions. The Natural Sapphire Company provides full disclosure of origin, treatments, and grading to support informed decisions by collectors and specialists.

This sapphire s history begins long before any human intervention, deep within the metamorphic terrain of Ceylon, Sri Lanka. Under conditions of intense heat and pressure, aluminum rich host rocks recrystallized and allowed corundum to form over millions of years. Trace concentrations of iron and titanium became incorporated into the crystal lattice as the corundum grew, producing the blue hue that defines this gem. Over successive geological cycles, tectonic activity and weathering exposed and liberated gem bearing material, concentrating corundum grains into alluvial deposits where they could be preserved and later recovered. Natural growth zoning and minute inclusions were trapped within the crystal during formation, features that today inform its clarity grade when viewed at eye level. The subsequent human processes of careful selection, precision cutting into an emerald profile, and professional heating were applied to respect and reveal the stone s inherent qualities. The result is a sapphire that conveys both the complexity of its deep geological origins and the measured craftsmanship applied in the cutting room. The Natural Sapphire Company maintains chain of custody and documentation for this gem, ensuring that its geological narrative, treatment history, and measured qualities are transparent to the purchaser.