【USA】Analytical Techniques in Gemology: A Historical Overview
Editor’s NoteThis special issue of *Gems & Gemology* explores the sophisticated instrumentation used in modern gemology. As the field grows…
Gem Testing
Laboratory-Grown Diamonds: An Update on Identification and Products Evaluated at GIA
Editor’s NoteThis article provides a comprehensive overview of the rapid evolution of laboratory-grown diamonds over the past two decades, charting…
【Tokyo, Japan】Information | The Onslaught of Synthetic Diamonds, Research Institutions Respond Strategically
Editor’s NoteThis article discusses HPHT (High Pressure High Temperature) treatment, a process used to enhance the color grade of natural diamonds….
【Paris, Franc】Jewelry: Behind the Scenes at the French Gemmology Laboratory that Certifies Precious Stones
Editor’s NoteThis article highlights the French Gemmology Laboratory (LFG), the world’s oldest gemmology lab. Founded in 1929, it remains the only…
【Jaipur, Indi】Glass-Filled Polki-Cut CVD Synthetic Diamonds
Editor’s NoteThis article examines the delicate nature of polki diamonds and the growing market trend of filling them with high-refractive-index…
【Bihar, India】Superstition Creates a Huge Market, Most Gemstones in Bihar Come from Jaipur
Editor’s NoteThis article examines the commercial scale of modern superstition, from fortune-telling to astrological remedies, highlighting how…
【Basel, Switz】SSEF Inaugurates New State-of-the-Art Laboratory in Basel, Enabling Massive Expansion of Research, Education and Grading Services
Editor’s NoteThe Swiss Gemmological Institute (SSEF) has significantly expanded its capabilities with a new, larger laboratory in Basel. This major…