Gemological Laboratory is an independent firm that identifies, appraises and evaluates gemstones and jewelry. This section provides information on world's leading Gemological Laboratories offering certificates and grading reports for gemstones and jewelry to protect consumers.
In 1986 EGL USA became independently owned. Today the EGL USA Group has laboratories in New York City, Los Angeles, Vancouver, and Toronto. EGL USA is not affiliated with any other EGL labs outside North America.
GIA is considered the world's most trusted name in diamond grading and gemstone identification. Since 1931, GIA has been dedicated to ensuring the public trust in gems and jewelry by upholding the highest standards of integrity, academics, science, and professionalism. It is the corporate birthplace of the International Diamond Grading System™ and the creator of the famous 4Cs of diamond value – color, clarity, cut, and carat weight.
GIA's D-to-Z color-grading scale and Flawless-to-I3 clarity-grading scale are recognized by gem and jewelry professionals everywhere. And, by extension, the GIA Diamond Grading Report, Diamond Dossier®, and Gemological Identification Report are considered the world's premier gemological credentials.
With laboratories in New York, California, Bangkok, an additional research facility in Antwerp, 14 campuses, and more than 1,100 employees worldwide, the Institute's diamond graders, researchers, and educators are regarded, collectively, as the world's foremost authority in gemology. And together, they carry on GIA's proud tradition of research, discovery, and education.
IGI is the largest independent gem certification and appraisal institute with operations worldwide. Over the past three decades, IGI's commitment to quality services, extensive experience, expertise and its longstanding reputation for reliability and integrity have made IGI the standard of excellence in gemology and fine jewelry evaluation worldwide.
Swiss Gemological Laboratory is an independent gem laboratory that identifies, grades and certifies diamond and gemstone jewelry. SGL was established with the objective of protecting consumers by providing them with quality independent gemological services.
SGL's mission is to enhance the consumers' trust and confidence by offering them reliable and consistent jewelry certification and grading services by maintaining the highest levels of ethics and standards of professionalism.
SGL's quality grading certificates are graded by experienced Gemologists / Graders who are graduates of the prestigious Gemological Institute of America (GIA). SGL utilizes state-of-the-art gemological equipments and advanced technology for its jewelry certification and grading services. SGL offers easy to understand jewelry certificates to consumers by using GIA's well-established grading terminology and guidelines.
Every certificate issued by Swiss Gemological Laboratory carries a unique certificate number that can be tracked Online. With the help of the Track Your Certificate option on the www.SwissGemLab.com Website, consumers can easily track and verify their SGL certificates along with their Jeweler's information from where they have purchased the diamond jewelry - all Online!
Every Certificate, issued by Swiss Gemological Laboratory, provides the Confidence... Security... Credibility... and Peace of Mind to the Consumer that the diamond or gemstone jewelry they purchased represents the quality they were promised.
The AGS Laboratories is the world's premier diamond grading laboratory for diamond cut, the premier laboratory to offer a diamond cut grade for fancy shapes such as princess cut and emerald cut, and the foremost diamond grading laboratory created to protect the consumer. AGS Laboratories diamond grading reports offer an easy-to-read grading scale that provides a simple basis for comparison to other diamond reports. The AGS Laboratories Diamond Reports provide you with all the information you need to make the best possible buying decision.
The AGS Laboratories have provided high-quality diamond grading services since 1996. AGS Laboratories has maintained its reputation as an industry leader through its innovative approaches to diamond grading and consistent adherence to the American Gem Society's standards and ethics of consumer protection.