1. Chicago Lapidary Studio: Located at 2924 W North Ave, Chicago, IL 60647, the Chicago Lapidary Studio offers lapidary services such as gem cutting, faceting, polishing, and jewelry making.
2. Gemological Institute of America (GIA): Although primarily an educational institution, the GIA also provides gemological services, including gemstone identification and grading. You can find the GIA in Chicago at 535 N Michigan Ave, Ste 200, Chicago, IL 60611.
3. Faceting Arts Center: Situated at 3551 Lawrence Ave, Chicago, IL 60625, the Faceting Arts Center is a lapidary school teaching a range of specialized stone cutting techniques.
Keep in mind that this list is non-exhaustive, and additional lapidarists may be located in the Chicago area.