GIA Gem Encyclopedia | Complete List Of Gemstones
GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological …
Gemological Institute Of America | All About Gemstones - GIA
Colored Stones Diamonds & Diamond Grading Gem Identification
Sapphire Gemstone | Sapphire Stone - GIA
GIA Gemological Identification Reports assess the characteristics of a stone (weight, measurements, shape, cutting style and color), determine if it is natural or laboratory-grown, …
GIA iD100 Gem Testing Device
The GIA iD100 ® gem testing device combines advanced spectroscopic technology and more than 60 years of GIA diamond and gemstone identification research to deliver a sophisticated …
Analysis & Grading - GIA.edu
GIA is the world’s most trusted name in diamond grading and gem identification. With objectivity and expertise as its hallmarks, GIA ensures the integrity and accuracy of every report it issues. …
GIA Education Landing - Gemological Institute of America
Practice identifying more than 60 species of gemstones, distinguishing natural from laboratory-grown gems and detecting gem treatments. You will carry out testing procedures and …
Gemology Classes | Online Division - GIA
Gem Identification. Practice identifying more than 60 species of gemstones, including naturals, synthetics, and treated. Start Sample. View Course Details
Colored Stone Reports & Services - GIA
Colored Stone Identification Report. Identifies and describes a material and lists detectable treatments. For any polished, loose or mounted material. View Sample Report.
Gem Identification - GIA
Practice identifying more than 60 species of gemstones, distinguishing natural from laboratory-grown gems and detecting gem treatments. You will carry out testing procedures and …
Turquoise Gemstone | Turquoise Stone - GIA
Turquoise is an opaque colored stone that can be marketed both as a gem for jewelry & is found in only dry & barren regions on earth.