A peek behind the scenes from IGI Worldwide

See Metal I.D. Performed on an Antique Etruscan Necklace

Recently the IGI Lab in Shanghai received an antique Etruscan revival style necklace from the mid to late 19th century. When the necklace was submitted, IGI gemologists immediately understood the reason it was sent for identification: It seemed to weigh less than it should and, therefore, was suspected to be made of gilt copper, rather than gold.

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Read more about the article Diamonds Created without Heat – a Scientific First
Photo credit: Crystal Kwok on Unsplash

Diamonds Created without Heat – a Scientific First

Our planet's supply of diamonds were produced by four different processes. One took over a million years to achieve results. The next have been working in laboratories and factories, with increasing success, since the 1950s. But until this month man had never replicated that final process.

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Read more about the article See this 10-carat LGD’s color transformed from yellow to pink!
Photo credit: IGI Worldwide

See this 10-carat LGD’s color transformed from yellow to pink!

This 10+ carat HPHT produced lab-grown diamond was initially graded Fancy Intense Yellow by IGI. When it returned to the lab its color had been changed to Fancy Vivid Pink. IGI confirmed that the color had been shifted from yellow to pink through irradiation using a 5MeV Electron Beam Transfer system.

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