What Determines the Value of Loose Diamonds?

loose diamonds

You probably have some loose diamonds you want to sell, and you are wondering what their value is. Diamonds are rare stones that do not come cheap at all. Selling your loose diamonds can be a quick way to get out of a financial crisis or getting rid of attachments you don’t need anymore. So, how do you know how much value your loose diamonds hold? Diamond appraisers are the experts capable of estimating the value of your loose diamonds. However, it is best if you know what determines the quality or value of the diamonds.

Carat of the Diamond

The diamond’s carat depends on its weight. In most cases, the bigger the size of the diamond, the more the carat weight. If you want to sell loose diamonds, their carat is a determining factor for its value and price.

When the carat weight is more, the price of the diamond rises. For instance, the difference between a 0.98carat diamond and 0.01  carat is rarely visible, but that significantly affects the price. The carat weight is the critical factor in selling your loose diamonds and many other gemstones.


There is an International Colour Gradation for diamonds that provide grades D-Z with D being the colorless one and Z the yellow hue. There are diamonds with scarce colors such as orange, blue, yellow, green, pink, and their value will be higher in the market. Even though colorless diamonds are valuable, diamonds with rare colors are pricier. 

There are other fancy colored diamonds. These have a very intense color and always have an indication in the certificate as fancy colored ones. Furthermore, that value of colored diamonds fluctuates depending on demand in the market caused by trends, time, celebrity, or publicity.


The clarity of a diamond depends on inclusions (impurities) or flaws on the diamond. They can be external due to everyday use or internal as gemstone impurities. The inclusions are not visible through the bare eye and are graded on a clarity scale. However, some inclusions may be visible to the naked eye, which lessens the diamond’s value. On the other hand, diamonds with less or inclusions visible at 10x magnification through a microscope will have a high monetary value.

While inclusions may not affect a diamond’s beauty, they obstruct the diamond’s sparkle when under the reflection of light. Most buyers will offer you a reasonable price for diamonds whose inclusions are no visible to the naked eye than visible ones.


Another important quality of a diamond is the cut. The level of the cut is what determines the level of brightness or twinkle. The symmetry and proportions determine the quality of the cut.

The cut is also the only human factor that can determine the value of the diamond. Also known as the miner’s cut, a well-cut diamond reflects maximum light to the back of its crown inside and outside. The cut is what gives the diamond radiance and is a highly determining factor of its value.

It also determines the diamond’s shape, such as round, square, oval, pear, heart, etc. Most people love fancy cuts such as the round shape.

The Final Words

Commonly known as the 4Cs in the diamond market, carat, cut, clarity, and color are the determinants of a diamond’s quality. Knowing that will keep you informed when it comes to selling your loose diamonds.

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