Demantoid is a rare and expensive green variety of garnet andradite. The best stones come from the Ural Mountains in Russia. Peculiar 'horse tail' inclusions of byssolite are appreciated by collectors, and will increase the stone's value. Demantoids are generally not treated.
The figures are based on Gemval's aggregated valuation statistics for the retail market. Irrelevant, controversial or repeat data are excluded from our analysis wherever possible. The figures are updated monthly.
Occurrence is represented in % for different weight categories.
Occurrence is represented in % for different value intervals.
Occurrence is represented in % for different clarity grades.
Select gemstone variety: