What is a natural colored diamond?

When you think of diamonds, you probably think of something that is colorless and transparent. However, there are also diamonds with bright colors such as red, pink, and blue. These colored diamonds are called "colored diamonds."

Natural colored diamonds have a special appeal due to their rarity and beauty. Unlike ordinary colorless diamonds, colored diamonds have unique colors that are formed through natural processes, and their color is created by the inclusion of chemical elements and structural distortion. Colored diamonds are extremely rare, with only 1 in 10,000 diamonds being colored. This rarity supports the high value and popularity of colored diamonds.

There is a wide variety of colors, ranging from dark colors called fancy colors to light colors. It also has the charm of a work of art, adding unique personality and elegance to jewelry designs. They are often traded at high prices, especially at famous auction houses, and are attracting attention as investment targets. Natural colored diamonds are extremely attractive due to their rarity, beauty, and investment value.

Background of the birth of colored diamonds

Why are colored diamonds so rare? This is because, in the process of creating diamonds, "coincidences" that occur with a very small probability must occur together.

Contamination with impurities

During the diamond production process, impurities such as nitrogen and boron are mixed in, causing color changes.

Effects of natural radiation

Exposure to natural radiation deep underground over many years can change a diamond's atomic structure and change its color.

Distortion of crystal structure

The color may change due to distortion of the diamond's crystal structure due to natural phenomena.

Colored diamonds come in a variety of colors due to the effects of these factors, either alone or in combination. However, it is extremely rare for these conditions to be met, which is why colored diamonds are considered rare.

Red Diamond: A truly “mythical jewel”, exceptional rarity and price

Red diamonds, as the name suggests, are diamonds that shine with a bright red color. It is said to be the rarest of all diamonds and is sometimes referred to as a "phantom gem." This is because red diamonds are produced in extremely small quantities in the world, and only a few have been discovered so far. Because of their rarity, their prices tend to be much higher than other colored diamonds. It is not uncommon for a large red diamond, over 1 carat, to be worth more than several hundred million yen.

Pink diamond: A popular color with cuteness and glamor

As the name suggests, pink diamonds are pink in color and are extremely rare and highly sought after. The charm of pink diamonds is their lovely color. It comes in a variety of colors, from pale pink to bright pink. Pink diamonds give a feminine and soft impression, soothing the wearer's heart. It will create a gorgeous and elegant atmosphere. They are also popular as engagement rings and wedding rings.

Blue diamond: A stone that symbolizes hope with its cool beauty.

As the name suggests, blue diamonds are diamonds that shine in blue color and appear blue due to the presence of boron. Blue diamonds, like red diamonds and pink diamonds, are rare and valued at high prices. As a stone that symbolizes hope, it is said to point out a bright future to those who wear it. Also, as it is called something blue, it is a color diamond that is popular in the bridal scene.

yellow diamond

Yellow diamonds exhibit a yellow color due to the inclusion of nitrogen in the diamond's crystal structure. The color shading of yellow diamonds is evaluated on a nine-level scale from "Faint Yellow" to "Fancy Vivid Yellow," and their rarity and value are proportional to the vividness of their color. Brilliant yellow diamonds are also called "canary yellow diamonds" because of their brilliance, and are especially popular. Yellow diamonds are produced in large quantities compared to other colored diamonds, so one of their appeals is that they are relatively affordable.

green diamond

Green diamonds are diamonds that contain nitrogen during the diamond formation process and develop a green color due to the effects of natural radiation. Brazil and Africa are the main production areas, and many of them are fluorescent. Although they are produced in smaller quantities than other colored diamonds, they are characterized by a wide variety of color shades, similar to yellow diamonds. Therefore, the value can vary greatly depending on the intensity of the color and how the color is applied.

purple diamond

Purple diamonds are pink diamonds with a stronger bluish tint. They are as rare and valuable as red diamonds and blue diamonds. Even if it looks purple, if it lacks blue, it may be judged as a pink diamond, and if it is too dark, it may be judged as a brown diamond, and beautiful purple diamonds are said to be highly valuable.

orange diamond

Orange diamonds are characterized by their bright orange color, reminiscent of pumpkins. Although it is less valued than red diamonds and blue diamonds, it is a colored diamond that is produced in very small quantities and is highly rare. It rarely appears on the market.

brown diamond

Brown diamonds are diamonds that have a brown color due to a mixture of yellow and orange pigments. Brown diamonds are called light brown, fancy light brown, fancy deep brown, fancy vivid brown, etc. depending on the shade of the color. In the past, diamonds were considered to be of low value compared to other colored diamonds, but in recent years their unique brilliance has gained popularity, and they are also attracting attention as jewelry.

black diamond

Black diamonds have a mysterious black color that is different from the image of diamonds. Most of them are made up of crystals that are smaller than regular diamonds. It contains a lot of graphite and other minerals, so it is characterized by the fact that it hardly allows light to pass through. Due to its mysterious shine, it has attracted attention in the fashion industry in recent years. One of its attractive features is that it is inexpensive compared to other colored diamonds.