Green demantoids owe their vivid coloration to chromium—the same element responsible for emerald’s green hue. This creates the most desirable rich, intense color that collectors seek in these conflict-free precious stones. Russian demantoids typically show the most prized chromium-rich green, with natural color distribution ensuring consistent appearance from all viewing angles.
Green demantoid garnets significantly outperform emeralds in brilliance and fire despite similar coloration. With a refractive index of 1.88-1.94 (versus emerald’s 1.57-1.58), demantoids return more light to the eye while their dispersion rating of 0.057 produces dramatic rainbow flashes that emeralds cannot match. This superior optical performance makes demantoids a high-value alternative for collectors seeking both color and exceptional brilliance.
Chromium-rich green demantoids commanding the highest prices display an intense, pure green without yellow or brown undertones. These premium specimens offer the most desirable emerald-like coloration while maintaining the demantoid’s superior fire. The rarity of these natural, untreated specimens with optimal chromium content significantly increases their worth in the marketplace, making them coveted acquisitions for serious collectors.
Green demantoids earn the “diamond-like” dispersion description because their optical properties actually exceed diamonds, with a dispersion value of 0.057 compared to diamond’s 0.044. This extraordinary property creates spectacular rainbow flashes of light as the stone moves. The combination of this exceptional fire with their rich green coloration makes these rare, natural gems particularly striking and valuable in high-quality specimens.
Video call
Talk to expert
Back