Coloured diamonds contain impurities or structural defects within the chemical composition. In the case of yellow diamonds, nitrogen is incorporated into their carbon crystal structure. These nitrogen impurities give a diamond its yellow colour as they modify light and absorb the blue part of the visible spectrum.
Are Coloured diamonds natural?
Diamonds naturally come in every color of the rainbow (yep red, blue, green, purple, pink, etc.), as well as black, brown, gray, and white. … So, there are many different color diamonds! Some colors, such as red and blue, are much more rare than others. As a result of this rarity, these colors are much more expensive.
Are diamonds impure?
Every natural diamond crystal contains impurities and typical intrinsic or “self-defects”: vacancies, dislocations, and interstitial atoms. The most common impurity in diamond is nitrogen, which can comprise up to 1% of a diamond by mass.
What are the impurities causing different colors in diamonds?
Most naturally-coloured diamonds are created when trace elements interact with the carbon atoms during the diamond’s creation. The presence of chemical elements such as nitrogen, sulphur, and boron can colour diamonds in shades of yellow, green and blue.
Are colored diamonds less valuable?
Rare and Expensive colored diamonds
The most expensive, and rarest, colored diamonds are significantly more expensive than white diamonds, with a value that rises exponentially the higher the carat and color intensity. These includes pink, purple, green, blue, violet and pure or “pumpkin” orange diamonds.
What is the cheapest color of diamond?
To group the colors based on prices the relatively affordable colored diamonds are grey, brown and fancy yellow. Going to mid ranging prices it can be an intense and vivid yellow diamonds and orange diamonds. A group higher in prices are pink, purple, violet, green and blue diamonds.
What’s the rarest color diamond?
What Are the Rarest Diamond Colors?
- Red Diamonds. The rarest of all colored diamonds, only 20 to 30 natural red diamonds exist in the entire world. …
- Blue Diamonds. Also incredibly rare are blue diamonds, which have only been found naturally in mines in South Africa, India, and Australia. …
- Pink Diamonds. …
- Yellow Diamonds.
What color are diamonds under normal conditions?
Many consumers think that all diamonds are colorless, however, in reality, they come in a wide range of colors. Actualcolor differences are very subtle. The “normal” color range of commercial diamonds is from colorless (white) to light yellow and light brown.
What are the worst inclusions in a diamond?
THE WORST DIAMOND INCLUSIONS
- The 4 Worst Inclusions. …
- 1) Black Carbon Spots. …
- Not all Carbon is Bad… …
- Point is, stay away from Black Spots! …
- 2) Inclusions Top, Center of your Diamond. …
- 3) Long Cracks or Fractures. …
- 4) Chips on the Side of the Diamond. …
- Girdle Chips.
What causes impurities in diamonds?
Types of impurities in diamonds
Imperfections in a diamond can have various causes. Generally, the impurities are black spots, cavities, fractures, or natural roughnesses: 1. Black spots consist of carbon that is not fully crystallized.
What is the difference between a clear diamond and a colored diamond?
A diamond’s color refers to how clear or yellow it is. In general, the highest quality diamonds are totally colorless, whereas lower quality diamonds can often have a slight yellow tint. … The more colorless a diamond is, generally the more radiant, valuable, and rare it is as well.
Is a white diamond a real diamond?
Natural white diamonds are true white diamonds, the color is considered to milky, snowy or opalescent. These diamonds are often confused with colorless diamonds commonly referred to as white diamonds. But the major difference with colorless vs white diamonds is the actual white color.
What diamond color is best?
D color diamond is the highest grade and is extremely rare—the highest color grade that money can buy. Eight percent of customers choose a D color diamond.
Do colored diamonds cost more?
The price per carat base line is in the tens of thousands of dollars and any improvement in attributes such as bigger size or stronger color intensity (intense or vivid) and the pricing goes up exponentially. So yes, these colored diamonds are more expensive than white diamonds.
Are colored diamonds man made?
Are Colored Diamonds Natural? Natural fancy color diamonds are completely authentic in every way. The colors were developed within the stones through nature and over millions of years formed into the rough stones found in the mines throughout the world.
Are I colored diamonds too yellow?
Technically, only D, E and F color diamonds are colorless. When examined closely, and under very controlled lighting, anything above F may indicate faint color. This color is almost always going to be yellow.