Handheld gemstone testers are commonly used to differentiate between diamond and diamond-simulants like CZ and moissanite. However, as diamond growing technology advances the technology used in those devices becomes more limited.
Gold and gemstone prospectors work the streets of New York's illustrious diamond district, but you might not recognize them at first. Kneeling, gloved, scraping and brushing, they could be mistaken for pedantic street cleaners but don't be fooled. Historically some Big Apple prospectors have claimed over $300 per day in "paydirt."
In response to a growing need for diamond screening in finished jewelry, IGI has launched a new Designer Appraisal Report. With more insurance companies requiring third-party appraisals for high-value articles, these independent reports will be useful protection for clients of quality-minded designers and brands.
The International Gemological Institute and the University of Naples Federico II, the oldest public non-sectarian university in the world, will collaborate on a presentation at the 3rd National Diamond and Colored Gems Conference in Bari, Italy on Thursday, July 22.
A diamond's journey through our laboratory is one of sophisticated assessment and analysis. From intake through inscription, every step is performed with careful attention to detail and thorough, transparent reporting. See how Your Diamond Story may be told to the world with confidence, in this descriptive video.
IGI New York has become the first gemological institute to commit to carbon neutrality, joining the Responsible Jewelry Council, International Precious Metals Institute and Initiative for Responsible Mining Assurance in this association with sustainability specialists, SCS Global Services.
Tiffany & Co. has announced a program detailing the provenance of the diamonds they sell, beginning with country and mine of origin. The New-York based jeweler plans to share this "Full Craftsmanship Journey" for every newly-sourced diamond of 0.18 carats or more.
Earlier this month GIA and AGS announced policy changes regarding lab-grown diamonds. IGI is proud to see other organizations adopt our long-held philosophy regarding the dual-channel legitimacy of natural and lab-grown diamonds, and believe professionals and consumers alike will benefit from the increased transparency in our industry.
When the Great Imperial Crown was made for the coronation of Catherine the Great in 1762 the court jewelers believed they were topping over 5,000 diamonds and pearls with an enormous 398 carat ruby. But it was never so. They had been fooled by a charming imposter.