Calcite Colored by Inclusions Diffusion Treated Corundum Diamond Colored by Pink Coating Diamond with Different Color Appearances Depending on Viewing Position Manufactured Glass Represented as “Green Obsidian” Cultured Pearls with Dolomite Beads Cultured Pearls with Treated Black Color Quartzite Dyed to Imitate Sugilite An Unusual Sapphirine To view the full section, download the PDF above.
Calcite Colored by Inclusions Diffusion Treated Corundum Diamond Colored by Pink Coating Diamond with Different Color Appearances Depending on Viewing Position Manufactured Glass Represented as “Green Obsidian” Cultured Pearls with Dolomite Beads Cultured Pearls with Treated Black Color Quartzite Dyed to Imitate Sugilite An Unusual Sapphirine To view the full section, download the PDF above.
