1.37 Ct. Purple Sapphire from Ceylon (Sri Lanka)

This 1.37 carat purple sapphire from The Natural Sapphire Company is presented in a classic emerald cut, with exact dimensions of 7.93 by 5.02 by 2.99 millimeters. The elongated rectangular outline produces a generous face up area, and the measured profile yields an estimated depth of approximately 46 percent relative to the average of the length and width. Those proportions are ideal for a statement design because the broad table and parallel step facets create a strong, continuous plane of color that reads boldly from a distance yet reveals nuanced internal structure at closer inspection. The emerald cut was executed with attention to pavilion geometry and crown height so that the step facets align to produce a hall of mirrors effect, allowing the intense purple saturation to saturate the visual field without appearing flat or indistinct.

Clarity is a principal reason this sapphire is especially suited to a single stone showpiece. Graded as very very slightly included when evaluated at eye level, the stone is effectively eye clean and free of visible feathers, clouds, or reflective pinpoint inclusions that would interrupt the overall color flow. Because the emerald cut emphasizes internal features, an eye clean grade in this shape demands precision during the cutting process, and here the cutter has oriented the crystal axes to minimize the visibility of any minute inclusions while preserving weight and face up size. Excellent polish across all facets maintains crisp facet junctions and smooth facet planes, which enhances the stone s overall transparency and maximizes surface reflection, enabling sharp flashes from the step facets and consistent color saturation across the table.

Color and treatment details further define the gem s performance in jewelry. The sapphire displays an intense color intensity, a vivid, saturated purple that shows evenness across the table with only very subtle natural zoning at extreme viewing angles. The origin is Ceylon, Sri Lanka, a historic source known for producing sapphires with lively brightness and pure tone, and the stone has been heat treated, a standard and stable enhancement in corundum. Heat treatment in Ceylon sapphires typically removes microscopic silk and enhances chromophore diffusion within the corundum lattice, yielding improved saturation and clarity without compromising long term durability. The material properties of corundum remain unchanged by this treatment, and the gem retains a refractive index in the range expected for natural sapphire, 1.762 to 1.770, along with a Mohs hardness of nine, characteristics that support everyday wear in a variety of mounting styles.

From a design and setting perspective the combination of size, clarity, and cutting precision makes this sapphire an excellent choice for a statement ring or pendant. The substantial face up area presented by the 7.93 by 5.02 millimeter table carries visual weight on the hand, providing a presence comparable to a larger gem of lesser depth, while the eye clean clarity ensures light passes through the stone with minimal scattering, accentuating the intense purple color. The stable heat treatment and excellent polish mean the stone will perform reliably in prong, bezel, or channel settings, and the strong step facets will produce elegant flashes of color when the hand moves. At The Natural Sapphire Company we recommend considering a setting that allows the table to sit prominently, for example a solitaire with minimal bezel metal, to fully exploit the emerald cut s architectural lines and to deliver the maximum statement effect for collectors and connoisseurs alike.