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4 giorni fa · A Tradition Of Science and Education. Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
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Established in 1931, the Gemological Institute of America...
- GemKids For Educators
Spanish conquistadors, Inca kings, and pharaohs treasured...
- Aquamarine Description
Aquamarine is the green-blue to blue variety of the mineral...
- English (Uk)
2 giorni fa · We offer the finest gem and jewelry education in the world with curriculum developed from our groundbreaking research and delivered by the industry’s leading experts. GIA gives you the knowledge and practical skills to translate your love for gems and jewelry into a rewarding career.
16 mag 2024 · Quando si tratta di diamanti, il fascino è innegabile. E se potessi avere un diamante che non solo catturi la brillantezza della natura ma sia anche in linea con i tuoi valori? Entra nei diamanti coltivati in laboratorio, un'alternativa rivoluzionaria che sta conquistando il mondo della gioielleria. Con le certificazioni di organizzazioni rispettabili come l'International Gemological ...
2 giorni fa · About. Diamond Color. The color evaluation of most gem-quality diamonds is based on the absence of color. A chemically pure and structurally perfect diamond has no hue, like a drop of pure water, and consequently, a higher value.
2 giorni fa · Diamond Clarity. Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep in the earth. This process can result in a variety of internal characteristics called 'inclusions' and external characteristics called 'blemishes.'
21 mag 2024 · The Gemological Institute of America (GIA) has released the Spring 2024 edition of Gems & Gemology (G&G), marking the 90th anniversary of the journal. This issue presents research studies on coloured stones and treatments, recaps the Tucson gem shows, spotlights an impressive garnet necklace, and contains the annual G&G Challenge quiz.
