2.39 Ct. Ruby from Mozambique

This GIA certified red, 2.39 carat, cushion shape ruby from Mozambique offers a study in precision cutting and natural signature, presented by The Natural Ruby Company. The stone measures 7.62 by 7.07 by 4.96 millimeters and is fashioned in a mixed brilliant cut, a deliberate faceting scheme that combines a modified brilliant crown with a pavilion optimized to return maximum light, while preserving weight and depth of tone. Clarity is graded very slightly included, evaluated at eye level, reflecting that inclusions are present but do not interrupt the visual integrity of the gem when viewed with the unaided eye. Color is vivid in intensity, with full saturation and a medium to medium dark tone that yields a deep, energetic red under both daylight and incandescent lighting. The polish is excellent, resulting in crisp facet junctions and mirror like facet planes that enhance both brilliance and the perception of purity. The suite of attributes is consistent with a professional heat treatment enhancement, a stable and widely accepted treatment that improves color saturation and reduces the visual impact of certain inclusions without compromising the stone structurally. The accompanying GIA report documents these qualities and provides independent verification of origin and treatment, supporting both collector confidence and trade liquidity.

The most distinguishing aspect of this ruby is the complex inclusion pattern that gives the gem an unmistakable signature, a fingerprint that differentiates it from other material even of similar color and size. Under magnification and to the trained eye, the interior displays a fine oriented network of silk, likely rutile needles, that is aligned with the crystallographic growth direction. These silk strands are very fine, creating a delicate satin like texture in localized zones that softens light diffusion and produces a subtle internal glow rather than opaque masking. Interspersed among the silk are isolated mineral crystal inclusions that act as tiny reflectors, catching facet reflections and producing scintillating pinpoints of light when the stone is tilted. Narrow healed fissures and minute growth related feathers are present, but they exhibit healed surfaces that function as internal mirrors, redirecting light to deepen red flashes rather than scattering it. In sectional view, faint growth zoning appears as slightly varying hue bands, this zonal contrast interacts with the mixed brilliant faceting to create a play of tone that emphasizes crimson at the table and richer pigeon blood tendencies near facet junctions. The combined effect of oriented silk, reflective crystal inclusions, and healed fissures gives the gem a multidimensional character, a signature that reads as natural and geological, while remaining visually clean at normal viewing distances. For connoisseurs who assess rubies by internal architecture, this stone is compelling, because the inclusions contribute to personality and provenance rather than diminishing value.

From a lapidary and setting perspective the interplay between faceting and inclusion structure is a strong asset. The mixed brilliant design was chosen to balance light return with weight retention, and to channel the vivid color toward the table while using pavilion facets to create depth and sparkle. The excellent polish ensures that facet planes transmit the full intensity of color and the internal inclusion highlights without surface disturbance. Given the very slightly included clarity and the heat treatment history, the ruby is well suited to fine jewelry settings where the viewer can appreciate both the saturated color and the natural internal signature. For engagement rings, a flush or bezel option protects the girdle and minimizes risk of chip, while a four prong mounting in platinum or a warm white metal will amplify the red by contrast. For collectors, the GIA document accompanying the stone secures its market pedigree, and the distinct inclusion fingerprint provides provenance value that often appeals to specialists who prefer traceable natural attributes. The Natural Ruby Company is pleased to present this Mozambique ruby as an exemplar of balanced cutting, certified natural origin, and a singular inclusion profile, and we are available to provide detailed photomicrography, custom mounting recommendations, or consultation on insurance grade documentation.