Original Content for the Roskin Report

Color Enhancement in Ruby has SGL Seeing Red by Bear Williams, Stone Group Labs (SGL) RUBIES are typically sent into professional gem labs for Identification...

Ethical Gem Fair: We See Progress Ethical Gem Fair Tucson: We had a chance to visit the fair and not a surprise, it was genuinely heartwarming...

New Spinel Treatment: Nickel Diffusion Scientists at the GIA laboratory in New York City recently discovered spinel, treated by nickel diffusion, in a parcel of...

Let's Do This! The Green Guides are being revised! And the FTC wants YOUR Advice! In response to the FTC’s upcoming revision of the Green...