1.68 Ct. Pinkish Red Ruby from Mozambique

This 1.68 carat oval pinkish red ruby from Mozambique is presented by The Natural Ruby Company with precise measurements that define its face up presence, 8.73 by 6.79 by 2.78 millimeters. The cutting style is faceted, executed as a mixed brilliant cut, which combines a brilliant facet schema on the crown with modified pavilion architecture to balance scintillation and color saturation. The stone evaluates as transparent with a clarity grade of slightly included at eye level, and an intense color intensity that reads as a vivid pinkish red under standard daylight viewing. The piece has undergone customary heat treatment to stabilize and intensify hue, and it carries an excellent polish that results in crisp facet intersections and clean light return. The oval outline and relatively shallow profile, with a depth in the lower range for the dimensions given, create a generous table and a broad face up color footprint, emphasizing saturation and allowing the mixed brilliant pavilion to return light in a manner that amplifies the perceived size and color depth.

At the material level this ruby is corundum, an aluminum oxide host lattice in which chromium substitutes at trace levels to produce its red color, and its optical behavior is a product of that crystal chemistry and the cutter's choices. Corundum has a refractive index in the range typical for ruby, and a modest birefringence, parameters that favor strong internal reflection when facet angles are optimized. The mixed brilliant cut on this example uses a relatively shallow pavilion plane and a crown with carefully proportioned star and kite facets to create controlled internal reflections and high contrast scintillation, while modified lower girdle facets act to distribute flashes across the table and shoulders. The cutter has oriented the pavilion to present the dominant pleochroic red tone face up, mitigating the paler secondary tones that can appear off axis in some material. Slight inclusions are present, but they are fine and dispersed, providing micro scattering that can contribute to lively pinfire scintillation without materially degrading transparency, when viewed at normal conversational distances. The excellent polish ensures that facet planes act as specular reflectors, minimizing micro abrasion and maximizing mirror like return, which in combination with the stone's refractive properties yields a sparkle that is energetic yet disciplined.

From a craftsmanship and practical standpoint this ruby is tailored for connoisseurs who prioritize optical performance and natural provenance. The cutter has prioritized facet symmetry and junction sharpness to ensure that light entering the crown is channeled through the pavilion facets and returned as a coherent mix of flashes and color windows, delivering a sparkle that reads as depth and motion rather than random scatter. Heat treatment has been applied with control to enhance the chromium derived color and to reduce the impact of silk like inclusions, while preserving overall transparency and the stone's natural character. The oval proportions and the mixed brilliant modality make this ruby versatile for ring center settings where the broad table will showcase color, or for bespoke pendant designs where movement will animate the stone and reveal its full scintillating behavior. The Natural Ruby Company documents origin and treatment, and stands behind the gemological description provided. For buyers who demand technical clarity in cut, optical performance, and origin, this Mozambique ruby offers an articulate expression of corundum chemistry, precision faceting, and finished polish, resulting in a sparkle and color presence that is distinct within its size class.