Iolite
Iolite is a violet-blue gemstone mineral (cordierite) commonly sold as tumbled stones, rough crystals, or faceted gems in the fossils and minerals market.
Estimated value as of 2026 · Source: Average from Etsy rough lots and tumbled stones for typical retail purchases
Fun Fact
Iolite prices have risen dramatically from being 'quite cheap' a decade ago to $8-$10 per carat in parcels today, due to increased demand.
Price History
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