Dr. James Shigley, a Distinguished Research Fellow at the Gemological Institute of America (GIA), explained that it is unlikely to identify a diamond’s origin based on its physical characteristics. According to Dr. Shigley, diamonds lack distinctive visual characteristics that could be used to determine their origin, and their trace elements are difficult to analyze due to their low concentration levels. Despite efforts to study the chemistry of diamonds, it is still challenging to determine where on Earth the stone originated.

During a recent GIA-sponsored GEMTalks series episode, Dr. Shigley discussed the provenance of colored gemstones and lab-grown diamonds, as well as answering questions from the audience. He emphasized that while identifying the provenance of colored gemstones is more feasible than with diamonds, using physical characteristics alone to determine a diamond’s provenance solely based on the study of the polished stone is currently impossible.

Despite these challenges, Dr. Shigley noted that GIA can confirm the provenance of diamonds through Diamond Provenance Reports by comparing polished stones with their rough known origins. This process is similar to a chain of custody and has a success rate of around 90%. However, he pointed out that studies were limited in size and range of sites, making it difficult to determine if there would be any future improvements in identifying origins through physical characteristics alone.

As an industry expert with extensive knowledge of gemology, Dr. Shigley provided valuable insights into gem and jewelry trade practices during GIA’s LinkedIn Live session hosted by GIA. Through research, education, and laboratory services, GIA aims to protect consumers and support the global industry while providing important news and analysis on the diamond and jewelry industry for those who want to stay informed about current trends and developments in this dynamic field.

Overall, while it may be challenging to identify a diamond’s origin based solely on its physical characteristics or chemical analysis alone, through other methods such as tracing rough stones back to their known origins through Diamond Provenance Reports or comparing polished stones with known origins using advanced technology like spectroscopy or microscopy; it is possible for experts like Dr. Shigley at GIA help consumers make informed decisions when buying precious gems or fine jewelry pieces.

By Samantha Johnson

As a dedicated content writer at newspuk.com, I immerse myself in the art of storytelling through words. With a keen eye for detail and a passion for crafting engaging narratives, I strive to captivate our audience with each piece I create. Whether I'm covering breaking news, delving into feature articles, or exploring thought-provoking editorials, my goal remains constant: to inform, entertain, and inspire through the power of writing. Join me on this journalistic journey as we navigate through the ever-evolving media landscape together.

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