0.79 Ct. Violet Spinel from Ceylon (Sri Lanka)

This listing presents a transparent violet spinel weighing zero point seven nine carat, cut into a cushion shape with dimensions of six point zero four by five point one nine by three point three seven millimeters, faceted in a mixed brilliant style. The gem displays a medium color intensity that reads as a refined violet with subtle blue overtones depending on the light source, and it is graded as very slightly included when viewed at eye level. The polish is excellent, and importantly the stone is natural and untreated, with no enhancement, coming directly from the classical spinel bearing districts of Ceylon in Sri Lanka. For buyers who appreciate provenance and natural condition, this combination of weight, neat cushion proportions, and untreated origin is an important foundation for both aesthetic enjoyment and long term value.

Clarity and cutting are central to the way this spinel performs, and the very slightly included clarity grade means that inclusions are minor and do not interrupt the visual purity when the gem is set or worn. At eye level the stone presents as clean, which is the most meaningful aspect of clarity for daily wear, and the excellent polish ensures that facet junctions are smooth, allowing light to pass and return without scattering losses. The mixed brilliant cut pairs a brilliant style crown with a pavilion that retains facets arranged for optimal light return, creating a lively balance of broad white brilliance and flashes of colored scintillation. The cushion outline supports a wide spread of table and crown facets, which helps the gem face up larger than its weight might suggest, and the proportionate depth delivers a pleasing balance of brightness and color saturation.

The optical behavior that gives this spinel its unmatched sparkle begins with its internal structure, spinel being an isometric mineral with a cubic crystal lattice. This isotropic structure means the stone is singly refractive, so light traverses and exits the crystal without the double imaging that can be present in anisotropic gems, which results in very crisp facet reflections. Spinel has a relatively high refractive index in the range typical of gem spinels, which translates into strong internal reflection and a lively play of light. The dispersion of spinel is modest compared with gemstones like diamond, however the way a skilled mixed brilliant cutter arranges pavilion and crown facets amplifies the visual effects, producing a combination of broad white brilliance and pinpoint scintillation. Because the stone is free of enhancement, the natural refractive and dispersive properties are preserved, so the balance of color and sparkle you see is exactly the natural character of the material.

Beyond optical physics, there are practical and market reasons this particular spinel is desirable to an educated buyer, and The Natural Gemstone Company is proud to present it with full disclosure. Sri Lankan spinel has a long history of producing well crystallized, clean material in a range of colors, and this violet example benefits from those geological conditions, showing stable color and durable crystal quality. The weight of zero point seven nine carat and the neat cushion geometry make it well suited for a refined solitaire or as the central stone in a more complex setting, while the excellent polish and very slightly included clarity maintain resale and inheritance value. Buyers should note that spinel is durable for daily wear with a Mohs hardness around eight point on the Mohs scale, and it resists common jewelry wear issues when properly set. Care recommendations include cleaning with mild warm soapy water and a soft brush, avoiding steam or harsh chemical cleaners for prolonged periods, and storing separately to prevent accidental abrasion with harder gems.

If you would like additional information, a calibrated photo report, or custom mounting options, The Natural Gemstone Company can provide high resolution images and secure evaluation documentation on request. We can also arrange independent testing or a gemological report if you require formal certification for investment or insurance purposes. For a collector or connoisseur seeking an untreated, fine violet spinel with excellent cutting and a crystalline structure that delivers crisp, lively sparkle, this cushion spinel from Ceylon is a compelling choice, combining natural origin, thoughtful cutting, and durable gemological characteristics that together establish its appeal and long term worth.