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Lab Notes

The laboratory recently photographed an outstanding collection of Demantoid garnets from Russia’s famed Ural Mountains, known for producing some of the gem’s finest colors. Though new production is minimal, stones from this historic source still appear on the market through second-hand channels.

Trend Report

Eco-conscious brides are choosing simple, responsibly sourced gold bands, while colorful gems and bold silver designs gain popularity. Pearl demand and prices continue to rise. With steady global growth and strong interest from China’s middle class, shifting tastes are reshaping the modern jewelry market.

Jeweler Spotlight 

Christopher Duquet is a jewelry designer in the city of Evanston. His shop produces one of a kind and limited edition works of fine jewelry. Christopher has won several national awards for design and is currently working on a new series scheduled to debut this fall called Facing East.

A Photographic Study of HPHT Synthetic Diamonds

 

 by Eitan Tashey

PGS Laboratory recently completed a study of lab-grown fancy yellow and orange diamonds grown and manufactured by the Gemesis Corporation. The findings produced a more comprehensive understanding of the HPHT process as the staff was able to identify

Professional Gem Sciences

Laboratory, Ltd.

​5 S. Wabash Avenue, Suite 315​

Chicago, IL 60603

   

© Copyright 2025  PGSL, Ltd.

Monday - Thursday

9:30am - 5:00 pm CST

Friday - Saturday:

By appointment only

T: (312) 920-1541



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