Michael Goldstein entered the diamond business in 1979 and has specialized in antique diamonds since 1990.

His company Michael Goldstein Ltd services an international clientele of jewelers, designers, dealers, and insurance companies.

The company is a prime source of Old European cut, cushion, and rose cut diamonds. MGL also carries recycled fancy shape diamonds.

Michael Goldstein has been a frequent lecturer to Trade and Appraisal Groups.