Analyses and separates diamonds from simulants, laboratory-grown and potentially HPHT treated natural diamonds.
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GIA established the 4Cs (Cut, Clarity, Color, Carat Weight) - the global standards for evaluating diamond quality.
Laboratory – The laboratory is open for intake of polished stones with limited staff Monday - Friday, 7:30 a.m. to 4:30 p.m., and clients may submit stones in person with an appointment. To schedule an appointment and receive instructions for stone return, please email firstname.lastname@example.org.
School – Open for campus visit from Monday - Thursday, 9:00 a.m. to 5:30 p.m. To schedule an appointment for campus visit or to learn more about GIA education programmes, please email email@example.com or call +91-22-4085-1500.
School – Open.
Laboratory – The laboratory is open Monday - Friday, 9 a.m. - 4:30 p.m. and is accepting submissions of polished stones up to 0.70 ct. The laboratory is accepting and returning stones using a courier service and clients may also submit items with a prior appointment. Please email firstname.lastname@example.org if you have any questions.