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Personal Appointments
The GUA New York laboratory is pleased to offer customers “while-you-wait”
identification and evaluation services for white diamonds, colored diamonds, and colored
gemstones. During this scheduled service, stones will be examined under standard
secure lab conditions.
For white diamonds, GUA New York can also provide “while-you-watch” service.
This analysis is conducted in a customer’s presence, at the lab or an approved off-site location.
This service is not available for treated white diamonds, colored diamonds, colored
gemstones, or pearls, due to the non-portable nature of the equipment used to evaluate them.
Please be advised that the time needed to complete a laboratory analysis will vary,
depending on the particular stone and type of work requested. Please allow ample time
for an appointment.
To request a quote or schedule an appointment for a personalized on- or off-site consultation,
contact GUA customer service at 888 GUA 4 (888 345 6789) or INFO@GUA-USA.COM.