Sarah C.
3/21/2017
Extraordinary service. I was referred here by one of the city's top estate jewelers to have some loose stones and jewelry inspected more carefully, with the idea that I would request formal...
Professional Gem Sciences
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5 S Wabash Ave Ste 315
Chicago, IL 60603
Professional Gem Sciences Laboratory (PGSL) is a highly experienced gemological service provider based in Chicago, IL. With a wealth of knowledge spanning decades and a vast collection of graded stones, PGSL offers a range of services including diamond certificates, origin reports, damage reports, and appraisals for insurance replacement.
Back by popular demand, PGSL is also offering diamond and gemstone grading and identification courses in 2023, marking their first classes since the Covid-19 pandemic. With a commitment to integrity as strong as a diamond, PGSL is dedicated to meeting all your gemological needs.
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Reviews
4.59 reviews
Judson G.
11/3/2020
Great job with my appraisal! Also provided a lot of information for future purchases. Thank you!
Yury S.
9/21/2016
PGS service is unique, they craft their approach to each client and student individually. I've personally had colored stones, jade, amber and diamonds appraised with them, and have heard a lot of...
Irena A.
1/28/2010
This place is the best. Very professional and knowledgeable staff. I had a ring appraised here. Miriam took her time explaining things and was very nice. I would definitely recommend this place to...
Christopher D.
10/16/2013
This is a long overdue review for Professional Gem Sciences in Chicago. Eitan and Myriam are the most charming and professional gemologists in the city, hands down. They can handle anything from a...
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