0.78 Ct. Green Demantoid Garnet from Russia

One beautiful transparent 0.78 carat round shape green demantoid garnet, dimensions 5.59 x 5.59 x 3.34 millimeters, mixed brilliant cut, clarity grade evaluated at the eye as very very slightly included, vivid color intensity, excellent polish, enhancement heat treated, origin Russia, presented by The Natural Gemstone Company. The proportions yield a depth of approximately 59.8 percent, which falls squarely within the ideal range to balance internal reflection and external scintillation. At 0.78 carat the gem is substantial for its diameter, and the round outline carries maximum symmetry for even light distribution. The provenance of this demantoid, from classic Russian deposits, informs its saturated green hue and lively chromatic response, attributes that are central to both market valuation and aesthetic performance.

The mixed brilliant cut employed on this stone combines a brilliant facet pattern on the crown with a more restrained pavilion architecture to optimize both brilliance and color retention. The crown facets are calibrated to create a strong flash pattern and rapid scintillation across the table and upper facets. The pavilion is engineered to moderate angles and facet geometry so that high dispersion inherent to demantoid is harnessed without allowing light leakage that would wash the color. The result is a controlled interplay between white light return and spectral fire, a balance achieved through precise facet junctions and exacting symmetry. The excellent polish noted on this specimen ensures that facets act as efficient mirrors, preserving contrast and enhancing the visual depth that collectors and set designers prize.

Color assessment places this demantoid at vivid intensity, a level of saturation and chroma that reads as a clean, deep grassy emerald green under standard daylight and corrected viewing conditions. Demantoid garnet is renowned for its unusually high dispersion relative to other garnets, a property that manifests as pronounced fire when the stone is faceted with attention to pavilion and crown angles, a quality particularly evident in mixed brilliant executions. The vivid green here benefits from the mixed cut by retaining rich body color while still permitting strong scintillation. The heat treatment applied is stable and uniform, intended to optimize tone and saturation. Such treatment is a permanent enhancement when performed under controlled conditions, and contributes to the immediate visual impact while maintaining the gem's long term color stability when cared for according to standard gemstone guidelines.

Clarity grading at the eye level as very very slightly included indicates that the stone is visually clean to unaided inspection, with any inclusions being minute and typically detectable only under moderate magnification. This clarity, combined with the well proportioned cut, allows maximum utilization of demantoid optical properties, so that dispersion and brilliance are not masked by internal imperfections. Although demantoid may sometimes present characteristic internal features in material from certain localities, this particular specimen exhibits only microscopic inclusions that do not detract from performance or durability. On the Mohs hardness scale, demantoid typically registers around 6.5 to 7.0, a range that affords reasonable day to day wearability in secured settings while advising some caution against abrasive contact and chemical exposure. The excellent polish and facet symmetry further mitigate surface wear by reducing micro abrasions that can dull luster over decades.

The natural beauty of this Russian demantoid garnet will continue to captivate over the years due to its inherent optical properties and the quality of its cutting and finishing. The stable heat treatment, combined with careful facet planning and superior polish, ensures that vibrancy and fire will be preserved with routine care. When set in designs that allow light to penetrate and interact with the pavilion, the gem will exhibit the lively spectral flashes and deep green saturation that define fine demantoids. The Natural Gemstone Company stands behind the provenance and the technical description of this gem, and we can advise on settings that maximize both visual impact and protection, recommend routine care to preserve polish and color, and provide documentation to support the stone s attributes. For collectors and connoisseurs who prioritize precise craftsmanship, optical performance, and long term beauty, this 0.78 carat Russian demantoid garnet represents a technically refined, enduring choice.