2.18 Ct. Ruby from Mozambique

This GRS certified Vivid Red Pigeons Blood ruby is a technically distinguished specimen, presented by The Natural Ruby Company, weighing 2.18 carats, with dimensions 9.00 x 6.74 x 4.73 mm, in a traditional pear shape. The gem has been fashioned with a mixed brilliant cut, combining a brilliant faceted crown and a modified pavilion geometry, and it carries a clarity grade of eye clean when evaluated at standard viewing distance, with an overall polish graded excellent. The origin is documented as Mozambique, and the stone has undergone routine heat treatment to stabilize and intensify its color. These baseline parameters establish the piece as a top tier trade grade ruby, suitable for high end jewelry applications where symmetry, color saturation, and controlled light performance are equally critical.

From a faceting and optical engineering perspective, the mixed brilliant execution on this pear profile is optimized to maximize internal light return while preserving the deep saturated body color associated with Pigeons Blood rubies. The brilliant style crown facets work to fragment incident light into numerous small internal reflections, creating a faceted scintillation pattern, while the pavilion facets are arranged to provide a high angle of total internal reflection consistent with corundum refractive index values near 1.762 to 1.770. The pear outline requires careful girdle symmetry and apex angle control to avoid light leakage at the tip and to maintain uniform contrast distribution along the length. The excellent polish enhances facet junction sharpness and reduces micro abrasion, thereby increasing specular reflectance off the facet planes and preserving crisp contrast between light and dark facet zones. The mixed cut is deliberately chosen to balance scintillation with color saturation, avoiding excessive windowing that would wash out the vivid red body color.

Color and clarity interplay are central to the perceived brilliance of this ruby. The vivid color intensity denotes a combination of high saturation and appropriate medium to slightly dark tone, resulting in the deep, pure red that the trade recognizes as Pigeons Blood. In corundum, chromium activator concentration and its interaction with trace iron determine hue and saturation, while heat treatment promotes homogenization of color zoning and reduction of veil like inclusions that scatter light. The eye clean clarity specification indicates minimal internal scattering centers, so incident light is largely preserved in coherent reflections rather than being diffusely scattered. That preservation of coherence produces stronger facet defined flashes and a more three dimensional appearance in the crown field. Because the stone is transparent and well finished, internal reflections register as vivid red flashes rather than white flashes, which is a characteristic effect when body color dominates over dispersion.

When comparing reflective qualities to other gemstones in its category, the optical behavior of this corundum ruby is distinct and quantifiable. Corundum refractive index at 1.762 to 1.770 is higher than spinel which typically ranges near 1.712 to 1.718, therefore the ruby exhibits stronger total internal reflection and marginally greater apparent brilliance under identical facet architecture. Sapphire which is also corundum will behave essentially identically in terms of refractive indices, but colorless or pastel sapphires will display more white light return and scintillation, whereas a vivid red ruby converts much of that return into saturated red due to strong absorption in the green blue waveband. Compared to garnets which may have higher dispersion but lower refractive index in some varieties, the ruby provides more controlled contrast and deeper color focused reflections rather than the fiery spectrum dispersion seen in high dispersion stones. Versus diamond, which has a refractive index of 2.417 and a dispersion of approximately 0.044 resulting in high white brilliance and pronounced fire, ruby yields less white light return and negligible spectral fire, instead offering saturated color flashes and a velvety internal glow. The mixed brilliant cut on this ruby exploits corundum optical constants, producing concentrated colored flashes and stable contrast patterning that outperform similarly cut spinel pieces in perceived depth, and that offer a fundamentally different aesthetic compared with high dispersion gems where colorless fire can dominate.

In practical terms for the jeweler and the connoisseur, the combination of GRS certification, Mozambique origin, vivid color intensity, mixed brilliant faceting, eye clean clarity, and excellent polish means the stone will present a deep, lively red in both natural and artificial lighting, with strong facet definition and minimal dead zones. The heat treatment is industry standard for color enhancement in trade notable deposits, and it does not detract from the stone stability or the controlled reflective behavior that the mixed cut generates. The Natural Ruby Company provides full documentation and imaging to evaluate the contrast pattern and table reflections prior to setting, and the measured dimensions make the stone well suited for classic solitaire or halo mountings where the pear silhouette can be oriented to maximize light capture. For buyers comparing stones, this Mozambique ruby will read as a high color, high transparency corundum with a reflective signature that emphasizes saturated red return rather than dispersion based fire, a characteristic highly prized in collectors seeking authentic Pigeons Blood tone combined with modern cutting precision.