Gemstone Guides
Buyer's Guide
Oregon Sunstones
Complete guide to Oregon sunstone — schiller, color grades, how it compares to sunstones worldwide, and what jewelry designers need to know before buying.
Explore Varieties
Garnets: Beyond Red
The garnet family extends far beyond traditional red gems. Use this guide to learn about the varieties most relevant to jewelry designers, with gemological properties, phenomena, and a full comparison table.