When it comes to determining the quality of a diamond, most people start by looking at the 4Cs—carat, color, clarity, and cut. These are essential factors that influence a diamond's value and appearance. However, simply checking the 4Cs isn't always enough. There are many other details that can affect the true quality and authenticity of a diamond.
First, when considering whether a diamond is worth purchasing, make sure it is not set in a piece of jewelry. Once a diamond is mounted, it becomes difficult to assess its true characteristics accurately. This is because the setting can obscure certain aspects of the stone, making it hard to judge its quality properly.
Second, different types of settings can alter how a diamond appears. For example, some settings may make a diamond look whiter or yellower than it actually is. Additionally, the prongs used in the setting can hide minor imperfections on the diamond’s surface. While diamonds are naturally the hardest gemstone, improper handling during setting or removal can damage the edges, reducing its value. If you're buying a diamond that has already been set, it's best to remove it for a more accurate evaluation of its clarity, color, and overall quality.
Third, if you place a diamond under sunlight or yellow light, it might appear brighter and more dazzling. But this isn’t an accurate way to assess its true quality. The correct method involves using a pure white light source without UV rays and examining the diamond with a 10x magnifying glass. Human eyes alone aren't reliable for judging a diamond's quality. A well-cut round brilliant diamond reflects light from the top, so flaws on the bottom may not be visible from above. This detail is crucial for buyers to understand.
Fourth, dirty or poorly maintained diamonds can appear dull and yellowish. To restore their brilliance, diamond jewelry should be cleaned regularly using a professional ultrasonic cleaner. Before evaluating a diamond, it should be thoroughly cleaned to ensure an accurate assessment of its color and clarity. After cleaning, it’s important to recheck the stone’s grade to confirm its true condition.
Fifth, the American Gem Society (AGS) classifies diamonds based on color. D to F grades are considered colorless, while G to I are nearly colorless. Diamonds below I tend to have a slight yellow tint. In terms of clarity, FL (Flawless) is the highest grade, followed by VVS1 and VVS2, which are considered very very small inclusions. These are excellent choices for investment or collection. At OL Jewelry Network, all diamonds offered are at least color I or better, with clarity of VS or higher, ensuring a high-quality purchase with confidence.
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