【Las Vegas, N】GIA Offers New Reports, Insights, and Services at JCK Las Vegas
Editor’s NoteThis article highlights GIA’s offerings at the JCK Las Vegas show, including on-site laboratory services, the new Diamond Origin Report,…
Gemology
Fancy Color Diamond
Editor’s NoteThis article highlights the contrasting value drivers between colorless and fancy color diamonds. While traditional D-to-Z diamonds are…
【Zambia】1.1-Kilogram Emerald Rough Stone Found in Zambia
Editor’s NoteThis article reports on the discovery of a remarkable 5,655-carat rough emerald in Zambia, announced by the gemstone mining company…
【Jaipur, Indi】Some Interesting Facts About the Precious Stone Emerald, You Will Be Amazed to Know
Editor’s NoteThis article explores the intricate process of gemstone identification, highlighting how experts analyze internal features like…
What are the Four Major Gemstone Types? Diamond, Ruby, Sapphire, Emerald
Editor’s NoteThis article explores the classification of the four major gemstones—diamond, sapphire, ruby, and emerald—as recognized by the mineral…
Updated CIBJO Blue Books Available For Downloading
Editor’s NoteThe latest editions of all six CIBJO Blue Books, the definitive standards for diamonds, colored gemstones, pearls, coral, precious…
【Pavia, Italy】Determining if an Emerald is Natural or Synthetic
Editor’s NoteThis article explores the historical and modern applications of spectroscopy in gemology, from its origins in Newton’s prism experiments…
【Boyacá, Colo】Colombian Emerald Mining: Will the Giant Awaken?
Editor’s NoteThis article explores the geological rarity of emeralds, explaining how the unique convergence of chromium and vanadium—elements…
The Growth Processes of HPHT and CVD Diamonds: Manufacturing Lab-Created Diamonds
Editor’s NoteThis article explores the evolution of lab-created diamonds, drawing on decades of GIA research. While chemically similar to natural…
【Lucerne, Swi】Book Review: The Eduard Josef Gübelin Story: The Art and Science of Gems
Editor’s NoteThis article highlights the groundbreaking work of Dr. Edward J. Gübelin, whose pioneering research into gemstone inclusions…