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Gemological Institute of America - The World's Foremost Authority in Gemology.

GIA Established in 1931, GIA is the world’s largest and most respected nonprofit institute of gemological research and learning.

Conceived 73 years ago in the august tradition of Europe’s most venerated institutes, GIA discovers (through GIA Research), imparts (through GIA Education), and applies (through the GIA Gem Laboratory and GIA Gem Instruments) gemological knowledge to ensure the public trust in gems and jewelry. With nearly 900 employees, the Institute’s scientists, diamond graders, and educators are regarded, collectively, as the world's foremost authority in gemology.
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GIA Certified Loose Diamonds

European Gemological Laboratory - The World's most trusted name in gemology.

EGL EGL USA is one of the largest and oldest independent gemological institutions focusing on gemstone certification and research. Originally part of an international network founded in Europe in 1974, EGL USA opened its first U.S. lab in the heart of New York's international diamond and jewelry district in 1977.

In 1986 EGL USA became independently owned. Today the EGL USA Group has laboratories in New York City, Los Angeles, Vancouver, and Toronto.In 1999 EGL USA initiated a Research Department to respond to the changing needs of the jewelry industry. It is one of only a few labs worldwide doing advanced research in gemology.

Every certificate issued by our lab states "A member of the EGL USA Group." Certificate numbers are preceded by either "US" or "CA," to indicate country of origin and to provide consumers the assurance that their certificate has been issued by a member of the EGL USA Group.
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EGL Certified Loose Diamonds

Verisign - Online Payment Prcessiong.

Verisign VeriSign Inc (NASDAQ: VRSN) operates intelligent infrastructure services that enable people and business to find, connect, secure, and transact across today’s complex, global networks. Every day, verisign enable over 14 billion internet interactions, 3 billion telephony interactions, and $100M of e-commerce. They provide the services that help over 3,000 enterprises and 400,000 Web sites to operate securely, reliably, and efficiently.

To safeguard the transmission of data, VeriSign uses the latest secure SSL encryption technology to ensure data safety. However, it is the storage of data and not the transmission of data that poses the biggest security threat to electronic commerce.

gddiamond.com is using verisign secure payment gateway services to process credit card online.

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