Best High Dispersion
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Demantoid garnet is a rare gemstone belonging to the andradite group. It’s notable for its exceptionally high dispersion, creating brilliant flashes of color when light passes through it. This intense fire makes Demantoid highly sought after by jewelry collectors and gem enthusiasts who appreciate u...
A calcium iron silicate garnet species encompassing the gem varieties demantoid (green), topazolite (yellow), and melanite (black), with demantoid displaying the highest dispersion of any garnet.
Sphene, formally known as titanite, is a calcium titanium nesosilicate mineral valued as a collector's gemstone. It is distinguished by its exceptional dispersion, meaning faceted stones exhibit a fiery, multicolored scintillation that exceeds that of diamond. Sphene typically occurs in green, yello...
A zinc sulfide mineral (ZnS) with dispersive fire exceeding that of diamond, faceted as a rare collector's gem; notable transparent deposits occur in Spain and Mexico.
Tin oxide (SnO₂) and the primary ore of tin, occasionally faceted as a collector's gem for its refractive index near 2.0; major deposits occur in Bolivia and Indonesia.
Zircon is a nesosilicate mineral highly regarded for its brilliant luster and high refractive index, with notable specimens historically sourced from the alluvial deposits of Cambodia.
