What you need to know about buying yellow diamonds

The diamonds we see the most everyday are colorless. In fact, diamonds come in a variety of colors, including all the colors in the rainbow. Most people think that diamonds are colorless, or that it is difficult to link "diamonds" with "colors". Diamonds are a rarer and more precious branch of diamonds, usually found in collectors and auctions. The color diamonds are more eye-catching because they have diamond diamond luster and bright colors, so they are more valuable for investment and collection. The yellow diamond is the most common color diamond and the price is relatively close to the people. Let's take a look at the yellow diamond.

Most of the diamonds on the market are colorless or nearly colorless, up to light yellow, brown or gray. This is called the “general color range”, also known as the D to Z range, because each letter represents a color scale. paragraph.

Diamonds outside the general range of colours include dark yellow and dark brown, as well as pink, orange, blue and green. These diamonds are called "colored diamonds". They are called yellow, brown, and gray diamonds, and they have deeper shades or shades than diamonds in the D to Z range and diamonds in the front that are not yellow, brown, and gray.

There are two ways to form a color of a diamond: one is the presence of impurities, that is, atoms other than carbon; the other is structural defects such as the lack of carbon atoms or lattice distortion in the crystal lattice. The structural defects that form color are also called color centers. Many color centers are actually the result of structural defects and impurities. The reason is that structural defects form an open space for impurities and are filled with impurity elements such as nitrogen or boron. Nitrogen is the most common impurity in diamonds and is the most important cause of yellow. Therefore, yellow is the second most common color of diamonds, and yellow diamonds are sometimes marketed under the name "Canary". Although this statement is not an appropriate grade name, it is often used in the industry as a term for high-quality colored yellow diamonds.

A yellow diamond is not equal to a yellowish diamond. From D to Z, it means a relative degree without yellow. Only yellow with more than Z can be called Fancy. Generally, the yellow diamond of the diamond grade is low. The order of high is: Fancy Light Yellow, Fancy Yellow, Fancy Intense Yellow, Fancy Deep Yellow, Fancy Vivid Yellow. Although yellow diamonds are more common, yellow diamonds that reach the color level are rare. According to the statistics of the American Gem Society, less than 5% of the yellow diamonds identified by it are bright yellow diamonds.

In the colorful life, colorful colored diamonds bring people a bright and good mood. However, what is the difference between the 4C standard of colored diamonds and white diamonds?

carat

After the color classification, the carat weight is the most influential factor for the price of colored diamonds. When mining diamonds, the chances of finding large gemstones are much lower than those of small gemstones. This makes the value of large diamonds relatively high. Therefore, the price of colored diamonds increases in geometric progression as the carat weight increases.

Cleaness

Due to the nature of colored diamonds, clarity is less important than colorless diamonds. This is because the inclusions are often covered by the color of the diamond.

Cutting

The main purpose of cutting a colored diamond is to emphasize its color. This is different from colorless diamonds in that the colorless diamond is cut to maximize its brightness or flicker, and in some cases the flicker is degraded by the natural color of the colored diamond. Although the color diamond can still emit flicker, its color is the most important feature to consider when cutting a color diamond.

shape

The cut describes the refraction, size and finish of the diamond, while the shape refers to the overall outline of the diamond when viewed from above (eg round, princess or marquise). It is important to note that very colorful drills are cut into unconventional shapes to enhance their natural color. Because color diamonds are rare, colored diamonds with a specific color and a specific shape may not be available for a specified period of time.

Precautions

There are two uses for buying yellow diamonds: daily wear and collection investment. If it is worn everyday, it is a good purchase as long as it meets the buyer's wishes, but pay attention to the difference between yellow and white diamonds and yellow diamonds. The yellowed white diamond is a white, not pure, yellow-toned diamond. Compared with the pure white diamond of the same weight and transparency, the price decreases with the increase of the yellow tone, while the price of the real yellow diamond follows the yellow. The tone gradually increases and rises. However, if you mention the collection, you should pay attention to the quality when selecting the yellow diamond. If the proportion of 4C in the white diamond is equal, then for the yellow diamond, the color in the 4C is occupied. The proportion is significantly higher than the other 3C. According to the classification of colors, only the yellow diamonds that reach the level of Fancy Yellow have a collection value. It is generally recommended to collect Fancy Intense Yellow or above. For senior collectors, it must be a matter of course. Fancy Vivid Yellow will look for brilliant yellow-yellow yellow diamonds around the world.

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