Gemological Institute Of America | All About Gemstones - GIA
WEBEstablished in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
Natural Diamonds | Diamond Stone – GIA C
WEBAbout Diamond. Diamond forms under high temperature and pressure conditions that exist only about 100 miles beneath the earth’s surface. Diamond’s carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different.
Diamond Description
WEBDiamond’s characteristic chemical composition and crystal structure make it a unique member of the mineral kingdom. Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry.
GIA - Report Check
WEBGIA reports represent the highest standard of reliability, consistency and integrity. And now, GIA Report Check is available for all GIA reports, providing you with an additional level of assurance. With Report Check, you can quickly and conveniently confirm that the information on your report matches what is archived in the GIA report database.
Gemology Classes | Online Division - GIA
WEBMedia rich materials are delivered online so you learn the same curriculum as our on-campus students. Study whenever and wherever you want, then submit assignments and take exams online. Instructors are available by email or phone to provide support, guidance and expertise. Get hands-on experience in lab classes offered at GIA campuses worldwide.
My GIA
WEBMy Laboratory & GIA Laboratory Client Portal. Now featuring one log in for My Laboratory and the GIA Client Portal. Maintain your laboratory account information and grading results online. You can manage your team members and provide access to My Laboratory, update payment preferences, view open balances and create shipping memos.Also, view and …
GIA Education Story
WEBGIA Education Story. Founded by a jeweler who identified a need to professionalize the industry, GIA is a nonprofit institution committed to protecting and educating the public in the field of gems and jewelry. Since 1931, GIA created standards used in gemstone evaluation around the world by creating the 4Cs of Diamond Quality and the GIA 7 ...
Diamond Cut: The Wow Factor
WEBJan 14, 2016 · Carat weight, color, clarity, and let’s face it, price, help you decide which diamond you like best, but you might not understand how your diamond’s cut – how its facets and angles are cut and polished − affects its overall appearance – its “Wow” factor. A beautifully finished (cut) diamond is dazzling; every facet displays the ...
Is There a Difference Between Natural and Laboratory-Grown …
WEBMay 31, 2019 · One, however, is a billion or more years old and the other was recently grown in a laboratory. Both are diamonds, of course. The first is a natural diamond created by forces deep within the young Earth. The second is from a laboratory and possesses essentially the same chemical, physical and optical properties as its natural counterpart.
Diamond Quality Factors
WEBDiamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.