IDT
 Certification

An IDT Certificate discloses the details of any item. The value of a precious stone is determined by its gemological makeup, natural rarity and finished quality. Diamonds and gemstones of similar appearance can have important differences in value. Even experts need powerful analytic tools to detect synthetics, treatments and enhancement processes.
With more locations around the globe than any other laboratory, IDT is the most trusted name for the certification of diamonds and gemstones. Gemstones should only change hands when accompanied by a certificate attesting to quality.We take this responsibility very seriously.