WORLD GEMOLOGICAL INSTITUTE WGI

Certificates of precious stones and jewelry, paper, cardboard and goods from these materials which are not included in other classes; printed matter; stationery

Valuation and appraisal services relating to precious stones and diamonds

Testing, analysis and evaluation of precious stones and diamond for the purpose of certification; Gemological services, namely, providing identification, authentication, and gradation of diamonds and gemstones and issuing certificates related thereto