North American Gemological Laboratory is an independent gemological laboratory that provides appraisals and certificates on loose diamonds, jewelry, gemstones, antique jewelry and watches for the purpose of the consumer protection, tax, estates, insurance, liquidations, probate, divorce and inventory assessments.

Our laboratory is composed of a small team of passionate GIA trained Graduate Gemologists. Our goal is to provide unbiased information based on gemological testing and valuations based on market research. We do not buy or sell jewelry.

Our laboratory proudly serves the public, retail jewelry stores, manufacturers and gemstone collectors from around the globe.