The Gemological Institute of America (GIA) helps consumers make informed decisions when shopping t. So they provide state-of-the-art grading and identification services for laboratory-grown diamonds (LGDs). At the heart of these initiatives is the GIA Laboratory-Grown Diamond Report alongside ongoing research on LGDs. This according to Tom Moses, executive vice president and head of laboratory and research at GIA.
The digital exhibitions feature lab-grown diamonds in the D to Z scale, as well as fancy coloured diamonds. They even include colour and clarity specifications. Also the method used to grow the LGDs and whether there is evidence of post-growth processing.
Moses then stressed the importance of certification in the LGD sector. He noted the growing demand for GIA's laboratory diamond cultivation reports amidst increasing consumer awareness. “Lab-grown diamonds have gained acceptance from the trade and consumers. Often as a category they have differences with natural diamonds, so it is important that their origin and characteristics are properly known,” he said.
The GIA examined the quality of gemstones for the first time. Initially on diamonds created in the lab by General Electric more than 50 years ago. It published the first scientific study of the then new material in 1971.
Currently, GIA can identify LGDs that produce them via high-pressure, high-temperature (HPHT) and chemical vapor deposition (CVD) methods to an accuracy of 100 %. It is continuing its extensive and in-depth research on lab-grown diamonds. In particular to stay ahead of developments in development processes, treatments and technology.
“This research involves growing CVD diamonds at our own research facilities. This will ensure that we have up-to-date knowledge of the new technology, processes and treatments. We are also using these synthetic diamonds produced in-house to improve and test our identification capabilities,” reveals Moses.
GIA sees bright opportunities for lab-grown diamonds, provided they are fully disclosed. Moses said modern development technologies have allowed producers to grow high-quality LGD in larger quantities and larger sizes for the gem and jewelry market
