American Gem Society

The American Gem Society (AGS) is a trade association of retail jewelers, independent appraisers, suppliers, and selective industry members, which was founded in 1934 by Robert M. Shipley.

Humbled by this revelation, Shipley realized that this was a big problem among American jewelers, one which likely accounted for much of the public's distrust for the profession at the time.

Shipley lost his jewelry stores in a divorce and went to Europe, where he completed the Great Britain National Association of Goldsmiths gemological correspondence course.

Through the use of a microlaser beam, the laboratory can inscribe a diamond with a serial number, a company logo, or other text on the stone.

This service does not affect the quality of the diamond, and is generally performed on the girdle where it can only be viewed with a magnification device.