DIAMOND April's Birthstone Diamond Information For your gem needs Click Here To Visit My Store CHEMISTRY C CRYSTALLOGRAPHY Isometric REFRACTIVE INDEX 2.417 HARDNESS 10 SPECIFIC GRAVITY 3.515 CLEAVAGE...
Purity: The purest form of Gold considered 24 karats is equal to roughly 99.9 percent purity. Sometimes when looking at the stamp inside of gold rings, bracelets or other gold jewellery the numerical...
Green emeralds are a variety of the gemstone beryl and have been highly prized since pre-historic times. Color - hue, tone and saturation Clarity - visibility of inclusions Cut -how well the stone is cut ...
The 4Cs of Diamonds Carat Color Clarity Cut Carat Weight The size of a diamond has the biggest impact on its price. The metric carat, which equals 0.20 gram, is the standard unit of weight for diamonds...
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Serial numbers show approximate date of manufacture. For all dates, you will need to look at the construction technique and components used to get a more precise date of manufacture. See my note at the bottom...
1.Geologists use the latest technology such as satellite surveys and geochemistry to locate an ore deposit. 2.Computers are used to design the mine which requires precise and accurate measurement of the ore...
Diamond Glossary Abrasion: Tiny nicks along facet junctions, producing white fuzzy lines instead of sharp crisp facet edges. Baguette: A step cut in the shape of a small rectangular stone. May be tapered...
American Gemological Laboratories (AGL) became the first laboratory in the world to quantify colored stones in a linear, comparative manner. The organization and its President, C. R. Beesley, are...