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 In the past 50 years alone, scientists have learned a lot about how
Diamond Description Diamond is the only gem made of a single element: It is typically about 99 95 percent carbon The other 0 05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry Some trace elements can influence its color or crystal shape
GIA Diamond Research Diamond’s remarkable potential has spurred the rapid evolution of laboratory-grown gem-quality diamonds in the last 20 years Natural Diamond Mining In addition to its value as a gemstone, diamond has enormous scientific value as a window into hidden processes occurring deep inside the earth Given the sheer volume of diamonds passing
Natural Diamonds | Diamond Stone – GIA C The GIA Laboratory-Grown Diamond Report includes the standard GIA color, clarity and cut grading scales for reference purposes The reports use descriptive terms to identify color and clarity The LGDR, LGDR-Colored Diamond and LGDR-Colored Diamond Report Color Identification reports will include a statement that identifies the type of growth
Diamond Quality Factors Diamond weights are stated in metric carats, abbreviated “ct ” One metric carat is two-tenths (0 2) of a gram—just over seven thousandths (0 007) of an ounce One ounce contains almost 142 carats A small paper clip weighs about a carat The metric carat is divided into 100 points A point is one hundredth of a carat
How to Buy a Diamond | GIA 4Cs The beauty of a diamond can be most accurately evaluated through the 4Cs Cut Color Clarity Carat weight Originally coined by GIA founder, Robert M Shipley, the 4Cs ensure the most accurate diamond evaluation possible, taking into account everything from sparkle to size
Natural Diamonds | Diamond Stone – GIA C Diamond Diamonds are among nature’s most precious and beautiful creations Emerald Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine Citrine Citrine is the transparent, pale yellow to brownish orange variety of quartz View the Gem Encyclopedia You Might Also Like
Diamond Clarity | GIA 4Cs The GIA Diamond Clarity Scale is the global language for diamond clarity grading Wherever you go in the world, whatever language is spoken, when buying a diamond, today you will likely hear terms like VVS 1 or SI 2 used to describe clarity Every diamond is evaluated under 10x magnification and assigned a clarity grade
Understanding the 4Cs of Diamond Quality | Diamond Factors - GIA 4Cs GIA’s diamond grading provides the consistent and unbiased results that the global diamond industry and diamond customers trust Without strict standards, the characteristics, quality and value of a diamond would be left open to interpretation Choosing a diamond may be a matter of preference, but evaluating a diamond is a matter of precision
GIA Diamond Grading Scales: Universal Quality Measure - GIA 4Cs GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing the quality of any diamond, anywhere in the world The 4Cs means two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase