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Zainstaluj bezpłatny konwersji jednostek!
- 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 Diamond Research
Whether examining the laboratory-grown diamonds submitted for grading reports, growing CVD diamonds at our research facility in New Jersey, or altering these materials through treatments, GIA is staying at the forefront of characterization and identification of laboratory-grown diamond
- Diamond History and Lore
Diamond’s splendor has been appreciated for centuries, but there was not much scientific knowledge about it before the twentieth century Since then, diamond knowledge has grown steadily, with research by chemists, physicists, geologists, mineralogists, and oceanographers
- GIA Diamond Grading Scales: The Universal Measure of Quality - GIA 4Cs
The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight
- Diamond Description
Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface Diamond’s crystal structure is isometric, which means the carbon atoms are bonded in essentially the same way in all directions
- How to Buy A Diamond - GIA 4Cs
It isn’t until a diamond is cut, that the real beauty of a diamond begins to take shape With a GIA Diamond Grading Report, you can confidently make your next diamond purchase
- Diamond - Gemological Institute of America
what's in a name? Diamond [dye -mund] (noun) Diamond comes from the Greek word adamas which means “invincible ” For being the hardest material on earth, that is the perfect name for this gem!
- What is Diamond Color What it Means | GIA 4Cs
Proper color evaluation is a matter of expertise The correct way to evaluate diamond color is in precise conditions, under controlled lighting, where stones are compared to masterstones with established color grades Once properly evaluated, color is documented based on the GIA D-to-Z Color Scale From D for colorless to Z for light
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