Gemological Institute Of America | All About Gemstones - GIA
WEBThe Gemological Institute of America offers research, education, and laboratory services to protect gem and jewelry buyers.
GIA Gem Encyclopedia | Complete List Of Gemstones
WEBExplore the science and lore of gemstones with GIA Gem Encyclopedia, a virtual journey that features gemological information, buyer's guide, photos and videos.
Birthstones | Birthstone by Month | GIA
WEBAquamarine and bloodstone are the two birthstones for March. One evokes blue skies and calming waters while the other represents health and strength. Learn more about these two March birthstones and where they can be found. Those born in the month of April are lucky enough to call the diamond, a scintillating stone, their birthstone.
Natural Diamonds | Diamond Stone – GIA C
WEBDiamond 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.
GIA - Report Check
WEBGIA - Report Check
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.
My GIA
WEBMy GIA is a personalized online portal for GIA students, alumni and staff. You can access your courses, grades, transcripts, benefits and more.
August Birthstones | Peridot & Spinel Birthstone Information | GIA
WEBAugust Birthstone. Peridot, spinel and sardonyx are the three birthstones for August. The peridot birthstone is known for being formed under extreme conditions, as it can be found in the hardened lava that carried it from deep within Earth’s mantle as well as in meteorites that traveled from outer space.
Sapphire Quality Factors | Different Types & Colors of Sapphire | GIA
WEBSapphire is one of the big three of colored gemstones (the other two are ruby and emerald). This durable gemstone captures jewelry buyers with its practicality and aura of romance. Click here and learn about the factors that make sapphire so desirable!
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.
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