What are the different ways to classify diamonds?

Answer 1

Diamonds are graded mainly on the 4Cs - carat, clarity, color, and cut. The most well-known/reliable diamond grading org is the GIA. If you're buying a diamond you should definitely ask for a report so you're sure the stone is legitimate. They have a video that explains exactly how the 4Cs are graded here - http://gia4cs.gia.edu/

It helped me understand what I needed to know when my fiance and I were shopping for my engagement ring.
diamonds are graded on qualilty size and color based on a scale made just for the popular and beautiful jem

Answer 2

There is really only one type. All diamonds are crystalline carbon. They can be classified as gem-quality or industrial. They are graded by the amount of refraction, clarity, internal flaws, and weight. There are many different colors of diamonds including pink, white, champagne, yellow, blue, and green. See the related link for more information on the colors of diamonds.

Answer 3

Diamonds are formed from carbon, with the inclusion of trace minerals -- in gemstone diamonds. Only about 20% of all diamonds mined are gemstones. Industrial diamonds are also formed from carbon, but their structure is not as consistent as those found in gemstones.

Answer 4

There are many different types of diamonds to choose from. With the marquise, which is oval with pointed ends to the cushion; a cross between a rectangle and an oval. An emerald cut is rectangular with cropped corners and long, stair-step-like facets, an asscher is similar to an emerald cut, but square, so it looks octagonal. However, one of the most popular cuts for an engagement ring, the round cut is a classic diamond shape, a round stone with 58 facets, it has the most sparkle. If you’re looking to create an impact, the round cut is the one you should choose.

Answer 5

The 4 C’s of a diamonds is the universal method for assessing the quality of any diamond, anywhere in the world and is standard. All diamonds are rated based on the following: Color - most people believe diamonds to be clear or colorless, the majority of diamonds are yellow, brown, and black. The rarest of all diamond colors are white (or colorless). The Gemological Institute of America (G.I.A.) grades color alphabetically from D (totally colorless) to Z (yellow). For a diamond to be considered “colorless,” the G.I.A. requires that it be a D, E, or F. However, the D-Z scale is continuous, so the difference between an F and G is very small. The average color for engagement diamonds in the retails industry is G to H.

Carat weight - a carat is actually a standard unit of measure that defines the weight of a diamond. One carat is equivalent to 200 milligrams. Carat sizes are also expressed as “points”, with a one carat diamond equaling 100 points, a one-half carat diamond being 50 points, a three-quarter carat diamond being 75 points, and so on.

Clarity - A diamond’s clarity refers to the presence of identifying characteristics on and within the diamond. Diamonds are graded for clarity under 10x loupe magnification. Clarity grades range from Internally Flawless, diamonds, which are completely free of blemishes and inclusions even under 10 x magnifications, to Imperfect 3, diamonds which possess large, heavy blemishes and inclusions that are visible to the naked eye.

Cut – that’s a reference to the diamond’s reflective qualities, not the shape. Diamond cut is perhaps the most important of the four Cs, so it is important to understand how this quality affects the properties and values of a diamond. A good cut gives a diamond its brilliance, which is that brightness that seems to come from the very heart of a diamond. The angles and finish of any diamond are what determine its ability to handle light, which leads to fire, brilliance & scintillation.

Answer 6

Of the 20% of diamonds mined that are gem-quality, there are several ways to classify these stones.

Generally, the four Cs -- clarity, colour, carat weight and cut -- are used.

Answer 7

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