National Gemmological Lab, led by Arthur DeMello GG GIA Graduate Gemologist, offers expert diamond jewelry appraisals at 40 office locations across Massachusetts, Rhode Island, Connecticut, New York, and New Jersey. With over 23 years of experience, Arthur DeMello specializes in providing independent appraisals for insurance, estate, tax, and matrimonial purposes.
Utilizing top-of-the-line Gemological Equipment, including instruments by GIA GEM Instruments and Sarin OPL England, the lab ensures accurate and precise assessments for diamonds purchased from renowned jewelers like Tiffany & Co., Cartier, and Rolex. Specializing in fine diamond appraisals of 5.00 carats and above, National Gemmological Lab offers professional services in a wide range of locations, including Boston, Manhattan, Providence, and more.
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