Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brillianceĭiamonds are renowned for their ability to transmit light and sparkle so intensely.Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification.Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification, but can be characterized as minor.Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification.Internally Flawless (IF) No inclusions visible under 10x magnification.Flawless (FL) No inclusions and no blemishes visible under 10x magnification.The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.
But the closer it comes to purity, the better its clarity. If you are trying to determine what is the best clarity for a diamond, remember that no diamond is perfectly pure. This process can result in a variety of internal characteristics called 'inclusions' and external characteristics called 'blemishes.'Įvaluating diamond clarity involves determining the number, size, relief, nature, and position of these characteristics, as well as how these affect the overall appearance of the stone. Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep in the earth. To understand diamond clarity, we must first understand how diamonds are created. While now you know what carat means, it's also important to remember that a diamond's value is determined using all of the 4Cs, and not just carat weight.
However, two diamonds of equal carat weight can have very different values (and prices) depending on three other factors of the diamond 4Cs: Color, Clarity, and Cut. A 1.08 carat stone would be described as 'one point oh eight carats.'Īll else being equal, diamond price increases with diamond carat weight because larger diamonds are rarer and more desirable. For instance, the jeweler may refer to a diamond that weighs 0.25 carats as a 'twenty-five pointer.' Diamond weights greater than one carat are expressed in carats and decimals. A jeweler may describe the weight of a diamond below one carat by its 'points' alone. Each carat is subdivided into 100 'points.' This allows very precise measurements to the hundredth decimal place. To put it simply, diamond carat weight measures how much a diamond weighs.Ī metric "carat" is defined as 200 milligrams.
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