At M. STERN, LLC., we provide our valued clients with professional Retail Replacement Value Appraisals for the purpose of obtaining gem & jewelry insurance. Having a professional appraisal is important and necessary for insurance purposes. 

We feature the industry's leading appraisal software, allowing us to integrate current market pricing into a highly organized, detailed, and professional appraisal document. 

Our appraisals are performed by a credentialed Graduate Gemologist (G.G.) and Accredited Jewelry Professional (A.J.P.), trained in-residence at the Gemological Institute of America (G.I.A.) Global Headquarters in Carlsbad, California. 

The G.I.A. G.G. and A.J.P. credentials are some of the most highly regarded credentials in the international gem and jewelry trade, requiring rigorous training and examination. Holders of the G.G. credential are trained experts in diamonds and diamond grading, colored stones, and gem identification. Those who obtain the credential in-residence at G.I.A., must grade more than 500 diamonds, test and identify more than 1,500 colored stones, and pass the internationally-known G.I.A. 20-Stone Examination with 100% accuracy. 

Holders of the A.J.P. credential are trained in diamonds, colored stones, watches, jewelry manufacturing, and jewelry history. Their training allows them to determine how a particular piece of jewelry was manufactured, where in the world it was made, and what time period it came from. 

We have extensive experience in the gem and jewelry trade, are regular attendees at the top industry trade shows, and possess a world-wide network of gem dealers, antiquities experts, and research gemologists. Together, these factors give us a highly specialized understanding of the world market and gemstone values. 


Minimum Charge/First Hour: $150

Each Additional Hour: $100


For appraisals, we accept;

  • cash
  • check
  • major credit cards via Square processing 

All applicable taxes apply

Availability & Location

We offer appraisal services by appointment only, Monday-Friday, 9am-5pm at our office, located at:

1900 Powell Street, Suite 600 (6th Floor), Office 6042, Emeryville, California USA 94608