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The striking blue hue of natural blue diamonds stems from elemental impurities absorbed during the diamonds’ deep underground formation millions of years ago. When boron atoms infiltrate the diamond’s carbon crystal lattice, they create acceptor energy bands within the mineral’s internal atomic structure. These unique energy bands absorb long-wavelength segments of visible natural light; the remaining unabsorbed short-wave light reflected to the human eye produces the characteristic cool blue shade that defines these rare stones. Due to the precise geological conditions required for boron to integrate evenly into diamond crystals, naturally occurring blue diamonds are exceptionally hard to find. Even diminutive natural blue diamonds of small carat weights can command valuations reaching tens of thousands of currency units.

Beyond colour performance, multiple core factors jointly dictate a blue diamond’s final market price, including carat weight, colour saturation, tone purity, clarity grade and cut brilliance, with colour characteristics consistently acting as the most decisive pricing factor.If you are captivated by the serene cerulean shade of clear skies and the profound dark blue of the deep ocean, collecting a genuine natural blue diamond is an unparalleled choice for gem enthusiasts. A massive price gap separates lab-created synthetic blue diamonds from naturally formed counterparts, with synthetic variants costing merely a fraction of the price of rare natural stones. Therefore, buyers must exercise extreme caution to avoid accidentally purchasing artificially treated or laboratory-grown blue diamonds when shopping. It is critical to verify an official GIA diamond grading certificate as authoritative proof of authenticity. Certificates for unaltered natural blue diamonds will clearly print the marking “natural” to distinguish them from treated or synthetic alternatives. For authentic blue diamonds sourced from the Argyle Mine, an exclusive laser engraving bearing the “Argyle” identification code is etched onto the stone’s girdle, serving as an exclusive origin authentication mark for collectors.

For buyers working within constrained budgets, or those who do not favour unmodified pure blue tones, there are numerous beautiful alternative fancy blue diamond varieties available on the market. Blue-purple, blue-grey and blue-green diamonds carry soft, unique mixed secondary hues, deliver mesmerising visual appeal, and feature far more accessible price points compared to fully saturated pure blue diamonds. These toned hybrid blue diamonds retain the elegant cool undertones that make blue gemstones desirable, while offering flexible options for collectors with diverse aesthetic preferences and spending limits.

In ten thousand diamonds only just one is colored diamond, including the orange diamond, blue diamond, red diamond, pink diamond, green diamond, yellow diamond and other fancy color diamonds, so when purchase colored diamonds is mostly focus on the intensity color, when buying colorless diamond refer to the 4Cs standard, such as cutting degree and clarity degree, compare with colored diamonds, when buying colored diamonds are not the most important factors, so the color, intensity and color richness is considered as the most important factor in buying color diamonds. The more vivid color, color diamonds are rarer and more valuable, for yellow diamond, there is fancy light, fancy, fancy intense and fancy vivid color degree.

Colored Diamond Weight

Except for color, the carat weight has the biggest influence on the value of fancy color diamond, found big colored diamond frequency is much smaller than small colored diamonds when mining, this makes big color diamond more valuable. Therefore, color diamond prices rising with the carat weight.

Colored Diamond Clarity

Due to the color diamond require have a natural color, the importance of its clarity is not as important as other colorless diamond. This is because the inclusions are covered by the color of the diamond.

Colored Diamond Cut

The color diamond cutters focus on its natural color firstly. This is contrary to the colorless diamond, the colorless diamond is highlighted by cutting maximize diamond luster or shine, it need to colored diamonds appear more glorious consider when cutting the most important features.

Fancy Color Diamond Inlay

It is best to choose the inlay material that can highlight diamond color when customize colored diamonds, for example, yellow diamond commonly used gold material, the beautiful pink diamond with rose gold inlaid. If you have any colored diamond questions, just contact diamond jewelry consultant of Leibish Company, they will help you learn more information for the color diamonds.

Colored Diamond Shape

It is worth noting that many color diamonds were cut into unconventional shape, such as emerald, princess cut or marquise, etc. In order to improve their qualities. Because of the rare characteristics of colored diamonds, a special shape, special color colored diamonds are difficult to get at a specific time.

Fancy Color Diamond Certification

All the colored diamonds from Leibish are appraised by the American college of gem (GIA) certification; through the laboratory identification of the diamond industry’s most respected. And from the Leibish review, as the leader and pioneer in fancy diamond field, all the color diamond of Leibish & co. from natural and not a scam.

Argyle diamond mine is one of the world’s most productive diamond mines, which is located in the kimberlite zone eastern part of western Australia, Argyle mine is the world’s main source of red diamond and pink diamond, and occupied ninety percent of the world pink diamond and red diamond annual output. Argyle mine also produces champagne, cognac color, purple and blue diamond.

Argyle diamond mine famous for the good quality fancy diamonds all over the world, the mine rock containing diamond was discovered in 1979, and the company began to impact mining in 1983. Argyle mine began operating in 1985, the colored diamond supply structure of the world began to change since that time, especially in the pink diamond market. Argyle mine produce 35 million carats diamond annually, which occupied one third of the world diamond, the five percent of the diamond is regarded as the gem grade.

The pink diamond from Argyle will be laser exclusive yards around the diamond waist, like this picture below, the diamond laser with argyle logo and unique numbers, and indicate the logo and numbers inside the GIA certificate, this is an important way to identify the argyle loose diamond.

Rio Tinto Group will be held the Argyle Pink Diamonds Tender every year, the pink diamonds are exhibited in the large diamond exhibition centre all over the world.

In 2001, Argyle diamond mine’s life close to end, Rio Tinto board of directors approved the building plan of underground mining field in 2005, which is expected to extend the age of the mine to 2018.

Fancy color diamond become more and more popular these years, many people think diamond is colorless and transparent, lots of people don’t know there is color diamonds in the world, in fact, the world of diamonds is not only one kind of color, who is also colorful. Most people think that the color of the diamond the whiter the more better, but economic value and collection value of color diamond are also very precious, because which is more rare than the normal diamond, so the fancy color diamond has more extraordinary charm. Although light color and color saturation is faint, the diamonds all can be named fancy color diamonds. Among these color diamonds, red and green is extremely rare, the next is red purple, orange, pink, purple and blue color. We often given priority yellow and brown color diamonds in jewelry market, the bright and beautiful yellow diamond has more economic value.

Green diamond, which is generated after crystallization generated when affected by underground radiation material, and result in green color finally, fancy green color loose diamond series including green with yellow, gray, green, olive green and chameleon colored diamonds.

Red diamond, which may be caused by deformation of crystal structure and mixed nitrogen, there is just one degree in red diamond color, which is fancy red (and no vivid, fancy intense and lightred degree). The red diamond series including red with brown, pink with red, red with purple, and so on. Red diamond is the most rare among fancy color diamond, and only a handful of gemstone can be rated as red diamond, only the pure blood red without other additional in it, the blood red color is gorgeous, so which is the extremely precious and rare color diamonds.

Yellow diamond, canary yellow and fancy vivid yellow bright color or bright color yellow is because of containing a single original nitrogen, squeezed into the carbon atoms in cubic crystal system closely packed in the diamond lattice, the yellow color is due to the lattice of carbon atoms and nitrogen replacement, so appear yellow color, this type of color mostly from colorless to pale yellow, GIA specified color grading after Z just can named yellow diamond, this color series varieties much more than other colors, but the top brilliant color yellow diamond is too little.

Pink diamond, Due to the phenomenon of twin crystal, crystal distortion and dislocation in crystal structure, the pink diamond series including brown with pink, orange with pink, red, pink with purple or bright red color.

Purple diamond, it is between red and blue color, because the purple diamond absorption green to yellow light waves in the visible light region, so there is common phenomenon of twin crystal structure, the pure purple colored diamonds almost is almost no adjective, but can be found the pink with purple and violet with pink color loose diamond.

Black diamond, a lot of dark opaque inclusions led to the black color, but the black diamond still have adamantine luster, the darker the more precious.

Orange diamond, due to crystal structure defects and nitrogen atoms, the orange diamond vice color is yellow, brown, pink and red, the pure orange diamond is very rare in nature, the diamond series including deep brown orange, orange pink and orange red.

The blue diamond, Mostly due to this kinds of diamond containing boron element, blue color diamond series including grey with blue, green with blue, blue with grey color.

Chameleon diamonds. gray, yellow and green olives combinations, the chameleon diamond is discoloration colorful appeal like the chameleon, stored in a dark place, after a slowly frozen, chameleon diamond will change to olives color, and then in only a few seconds or minutes, restore original color and lustre.

Grey diamond, due to internal lattice deformation dislocation or carbon atoms, grey color diamond series consists of dark grey, the lottery gray and gray green.

There is nine different rating degree in GIA: Faint，Very Light，Light，Fancy Light，Fancy, Fancy Dark, Fancy Intense，Fancy Deep and Fancy Vivid. The higher of color degree, the more value of the fancy color diamond. Leibish & co. can provide kinds of fancy color diamonds and rare gems for us, click here for more.

Fancy color diamond is the diamond with different colors, the value of fancy diamond is much more expensive than colorless diamond, because of the colorful gem is very beautiful and extremely rare in the world. As one of the famous gem associations, GIA established the 4 Cs standards: Clarity, Cut, Color and Carat.
Appraisal institutions are more likely take the color as first consideration for fancy diamonds, and the diamond color can only be named as fancy below Z, for yellow diamond, Although yellow color is the most common color in fancy, but the diamonds that reach vivid yellow also very rare, according to the American association of gem report, there is no more than five percent fancy vivid yellow in the yellow diamonds. The color degree from low to high is fancy light yellow, fancy yellow, fancy intense yellow, fancy deep yellow and fancy vivid yellow. The other color diamonds can be done in the same manner:

The blue diamond color grading：

Fait Blue
Light Blue
Fancy Light Blue
Fancy Blue
Fancy Intense Blue
Fancy Deep Blue
Fancy Vivid Blue

The pink diamond color grading：

Fait Pink
Light Pink
Fancy Light Pink
Fancy Pink
Fancy Intense Pink
Fancy Deep Pink
Fancy Vivid Pink

Because there is nitrogen which led to yellow color, as we all know, diamonds are carbon element, however, it is a very high density carbon crystal, add some nitrogen in the process, then colorless diamond becomes fancy yellow diamond, yellow diamond is the entry-level inside fancy diamonds, which not only color beautiful but also affordable for many people.

The fancy deep and fancy dark is mixed with other colors in the yellow, but which is not pure yellow, and is like add a drop of coffee in a cup of orange juice, the color of it will thicken, but it is no longer pure, the price fancy deep and fancy dark will be cheaper than fancy vivid.