What is diamond made of?

Diamond is a kind of natural gemstone with very high hardness, its main substance is carbon element. Every year 130 million carats of diamonds are mined in Canada, India, Russia, central or southern Africa, Brazil, and Australia. Now some substitutes appear, such as moissanitecubic zircon or laboratory-grown stone, etc., but diamond is a natural gemstone that represents eternity, so it is difficult to replace it in all aspects. 


Diamond grade

The grade of diamonds is divided into 4 types called 4C:

  1. Carat:

Carat is a unit used to describe the weight of a diamond. The heavier the diamond, the larger the volume and the higher the carat number. One carat of a diamond is equivalent to 200g of weight. As the volume increases, the price will rise geometrically, because diamonds There is no fixed place to mine, so the bigger the diamond, the more precious it is.


  1. Clarity:

Natural diamonds have some minor defects to a certain degree. Diamonds that have no defects are very rare and precious. Most of the impurities need to be seen with a 10x microscope. The colors of the impurities include: white, black, colorless, even green or Red, and so on. Clarity is a grading system that measures the number of inclusions and flaws. The flaws visible to the naked eye will be the lowest grade.


2.1. FL, IF grade diamonds:

FL (Flawless): Observed under ten times magnifying glass, there are no impurities or gaps.

IF (Internally Flawless): Observed under ten times magnifying glass, there are no impurities, only small gaps.


2.2. VVS1, VVS2 grade diamonds:

VVS1 (Very Very Small Inclusions): Diamonds have extremely small impurities, which are extremely difficult to observe under ten times magnifying glass.

VVS2 (Very Very Small Inclusions): Diamonds have very small impurities, which are difficult to observe under ten times magnifying glass.


2.3. VS1, VS2 grade diamonds:

VS1 (Very Small Inclusions): Diamonds have small impurities, which are difficult to observe under a ten-fold magnifying glass.

VS2 (Very Small Inclusions): Diamonds have small impurities and are easier to observe under a ten-fold magnifying glass.


2.4. SI1, SI2 grade diamonds:

Diamonds have obvious impurities. SI1 (Small Inclusions) is easy to observe under ten times magnifying glass, and SI2 (Small Inclusions) is easy to observe.


  1. Color:

The colors of diamonds are from D to Z. D is transparent and colorless, and Z is yellow. Except for the letters going backward, the color will also become darker. Fancy colored diamonds are very rare gems, but they cannot be graded using a color separation system.


  1. Cut:

The cut is the angle of the diamond cut by the diamond craftsman and the proportion of each part after the cut. The advanced diamond craftsman can create the perfect angle for the diamond according to the scientific formula. A perfect cut should be able to refract light to achieve the best results, the light source enters the diamond and then reflects on the top of the diamond via the refractive surface. The price of a perfectly cut diamond will be higher.



The refractive index of diamond is 2.4175-2.4178, and the reflected brilliance is softer. Compared with diamonds, Moissanite has a higher refractive index than diamonds, but the brilliance is more scattered.



Diamonds are currently the hardest natural gemstones in the world, with a hardness of 10. When diamonds are cut, lasers or diamonds are commonly used tools.



The price of diamonds depends on its 4 criteria: Carat, Clarity, Color, and Cut. The more perfect diamonds are of course the higher the price. The price of diamonds has always been high because there is no specific place to mine diamonds, unlike gold mines and silver mines that have a certain place to mine.


Diamond Jewelry

Diamonds are usually used for high-end and fine jewelry production, the most representative is the engagement ring because its characteristics can reflect the meaning of eternity, so used as a wedding ring means that two people will be together forever. Using diamonds in high-end jewelry design, the reason is that its refractive index can bring out a soft luster, and the price can also reflect the symbol of noble and gorgeous.


Lab-grown Diamond

Lab-grown Diamond is a new technology with exactly the same characteristics and values ​​as diamonds. Under normal circumstances, artificial diamonds without impurities can be produced, but the price is only about 1/4 of that of natural diamonds. It is also possible to use the naked eye and instruments and it is difficult to distinguish. But Lab-grown Diamond can only become the closest substitute to diamond because it is not a natural gemstone. For gem lovers, natural diamonds have a certain degree of attraction and symbolic significance.

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