THE JOURNAL
The Collector Journal
Collector guides to identity, origin, treatment, documentation and long-term ownership.
Our editorial starting points include Paraíba tourmaline, alexandrite and the wider tourmaline family. Start with the individual stone, then follow the questions about identity, origin, treatment and documentation. An identification report and an appraisal answer different questions; read each statement for what was actually examined and where a laboratory reserves an opinion. These guides are educational, not valuations or promises of future value. For a particular material, explore Colored Stone Consulting or begin a private brief.
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Tourmaline Buying Guide for Collectors
Explore tourmaline gemstones with a collector’s focus on color, quality, documentation, variety descriptions and considered long-term ownership.
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Alexandrite Buying Guide for Collectors
A collector’s guide to natural alexandrite: understand color change, viewing conditions, documentation and questions before a considered selection.
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Paraíba Tourmaline: A Collector’s Guide
Explore Paraíba tourmaline with a collector’s focus on identity, geographic-origin reports, treatment questions and long-term ownership.