• Wed. May 29th, 2024

The Impossibility of Diamond Origin Identification: Expert Insights from Dr. James Shigley of the GIA”.

BySamantha Nguyen

Mar 27, 2024
Top GIA Fellow States Science Unable to Identify Diamond Origins

Dr. James Shigley, a distinguished research fellow at the Gemological Institute of America (GIA), emphasized that it is unlikely to identify a diamond’s origin based on its physical characteristics. Despite efforts to study diamond chemistry, it is challenging to pinpoint where the stone originated on Earth due to their trace elements being difficult to analyze due to low concentration levels.

According to Dr. Shigley, studies have been limited in size and range of locations, making it difficult to determine the possibility of origin identification in the future. However, the GIA is successful in confirming the origin of diamonds through Diamond Origin Reports by matching polished stones to their rough of known provenance. This process is more akin to a chain of custody and has a success rate of around 90%.

During a recent episode of Rapaport’s GEMTalks series sponsored by the GIA, Dr. Shigley discussed origin determination for colored gemstones and lab-grown diamonds, along with addressing questions from the audience. He emphasized that while identifying the origin of colored gemstones is more feasible than identifying diamonds solely based on physical characteristics, using physical characteristics alone is currently impossible when trying to determine where a diamond came from just by studying a polished stone.

The GEMTalks LinkedIn Live session hosted by GIA showcases insights from industry experts such as Dr. Shigley who have extensive knowledge in gemology. By providing valuable information on gem and jewelry trade practices, the GIA aims to protect consumers and support the global industry through research, education, and laboratory services. For the latest news and analysis on the diamond and jewelry industry, sign up now!

By Samantha Nguyen

As a content writer at newsqwe.com, I am passionate about crafting engaging and informative articles that captivate our audience. With a background in journalism and a keen eye for detail, I strive to deliver content that is not only well-researched but also adds value to our readers' lives. From breaking news stories to in-depth features, I take pride in my ability to tell compelling stories that resonate with our diverse audience. When I'm not typing away at my keyboard, you can find me exploring new cafes, practicing yoga, or getting lost in a good book. I am thrilled to be a part of the newsqwe.com team and look forward to sharing my love for writing with all of our readers.

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