Gemological Institute Of America | All About Gemstones - GIA
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
GIA - Report Check
Jan 1, 2000 — For reports dated on or after: January 1, 2000: July 1, 2010: January 1, 2014: February 1, 2015: December 19, 2019: December 19, 2022: Report data: PDF facsimile of ...
Natural Diamonds | Diamond Stone – GIA C
Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.
GIA Gem Encyclopedia | Complete List Of Gemstones
Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a Buyer’s guide, photos, videos & …
Birthstones | Birthstone by Month - GIA
Birthstones are a fun, popular and colorful introduction to the world of gemstones. They appeal to audiences around the world regardless of gender, age, nationality or religion. Birthstones carry …
GIA - Report Check
ANALYSIS & GRADING Report Check. GIA reports represent the highest standard of reliability, consistency and integrity. And now, GIA Report Check is available for all GIA reports, …
What Is Tourmaline Gemstone | Tourmaline Stone - GIA
Tourmaline’s colors have many different causes. It’s generally agreed that traces of iron, and possibly titanium, induce green and blue colors.
Is There a Difference Between Natural and Laboratory-Grown …
May 31, 2019 — Laboratory-Grown Diamonds. Man-made diamonds suitable for industrial use were first produced in a laboratory in the 1950s. While gem-quality diamonds were produced …
Sapphire Gemstone | Sapphire Stone - GIA
Besides blue sapphire and ruby, the corundum family also includes so-called “fancy sapphires.” They come in violet, green, yellow, orange, pink, purple, and intermediate hues.
August Birthstones | Peridot & Spinel Birthstone Information - GIA
Where is Peridot Found? Peridot, the August birthstone, has an amazing story. Although most of the peridot seen in jewelry today comes from sources such as China, Myanmar, Pakistan, …