GCAL is a small, high quality gemological laboratory with all operations in one location in the Diamond District of New York. They bring extensive experience and technical knowledge to providing a very wide range of services for diamonds, colored gemstones, pearls, and fine jewelry. Their recent foray into comprehensive cut grading is indicative of their desire to remain on the leading edge of the industry.
GCAL caters to the diamond and jewelry trade and submissions must be on company letterhead. Individuals who would like to access their services need to go through a member of the jewelry trade.