Tourmaline
+2
Nov 6, 2026
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2 min read
What Paraíba tourmaline has sold for, and why a price per carat can mislead.
+1
Aug 20, 2026
11 min read
Colors, origins, and what makes it unique.
Jul 14, 2026
5 min read
The 5-minute weekly intelligence on the colored stone market. · July 14, 2026
