Global Gemological Laboratory (GGL), celebrating its eight years in Seattle, Wash., has opened a New York office at 55 W. 47th St., Suite 710. Alex Volynets, formerly of EGL New York, was appointed laboratory director. GGL specializes in diamond grading and appraisal reports and has more than 3,500 retail jewelry stores and wholesalers as clients. For information, call (800) 644-1645.