Considered to be a collector's stone, this is a variety of feldspar (plagioclase), with intense red and orange crystals being the most valued. Diffuse inclusions produce the distinctive shimmering effect known as schiller, which does not reduce the value of the stone.
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.
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