Analyses and separates diamonds from simulants, laboratory-grown and potentially HPHT treated natural diamonds.
Illustrate your way to a promising future. Learn how to take your great ideas and illustrate them just like professional designers.
GIA established the 4Cs (Cut, Clarity, Color, Carat Weight) - the global standards for evaluating diamond quality.
Many GIA locations have returned to normal hours and services. We will update this page as changes occur. At each of its locations, GIA is taking the necessary precautions to ensure everyone's health and safety. Here's the latest update for locations in India
The laboratory is open for submissions via transport or walk-in. The walk-in service is available by appointment only Monday - Friday, 7:30 a.m. to 4:30 p.m. Make an appointment.