This 1.360 ct Russian demantoid garnet from the Korkodino deposit in the Ural Mountains shows one of the rarest and most sought-after colors in the species: a vivid, electric neon green, intensely saturated and almost acidic in its brightness. It is the color collectors look for in top-grade Ural demantoid and very rarely find. A finely developed horsetail inclusion fans out across the center of the stone. Its delicate radiating fibers catch the light and make the green glow from within. Horsetail inclusions are the classic signature of Russian demantoid and one of the clearest proofs of natural origin. The round brilliant is Russian cut, measuring 6.50 × 6.50 × 4.32 mm. Its well-balanced proportions hold deep saturation edge to edge while keeping the stone bright and lively. In person the stone does not darken in ordinary light; it stays luminous. Every movement releases strong flashes of fire, from a dispersion that exceeds that of diamond. It is natural and untreated, confirmed by the Marianovich Gems Certificate of Authenticity. This is a collector-grade vivid green demantoid and a rare investment gemstone, worthy of a solitaire ring or pendant where its color can speak for itself.