Difference Between Moissanite and Diamond

Moissanite vs Diamond

We all know about diamonds as well as women’s attraction and love for diamond jewellery. Diamonds have been a favourite precious stone to be worn for all occasions whether inlaid in silver or gold. Because of its popularity among people, there have been many attempts to replicate it or to make synthesized diamonds in labs. Cubic Zirconia and Moissanite are two substances that look almost like diamond, and have the sparkle and brilliance that make them appropriate to be used as a replacement for diamonds in jewellery. In fact, Moissanite is so close in appearance to the diamond, that for an untrained eye, it is impossible to identify a Moissanite from a diamond. Therefore, this article highlights the difference between Moissanite and diamond which will shed some light upon this matter. 

What is Moissanite?

There have been umpteen attempts to replicate diamonds in labs, but none has been so successful, as those with Moissanite. In the early 20th century, Dr. Henry Moissan found traces of extremely brilliant material in a small meteorite in Arizona. It was silicon carbide, a naturally occurring material, but found only in traces in the world. This was a mineral that was almost like a diamond, but the problem was that it was not found in sufficient quantities. It was painstaking research by scientists that finally produced a stimulant of diamond was in the laboratory, and this substance was called Moissanite in honour of the Nobel Prize winner scientist, Dr. Henry Moissanite. Today, it is being used as an alternative to diamonds in jewellery, providing more fire, brilliance, and lustre than real diamond at a fraction of the cost. Scientists have been able to create Moissanite in various shapes and sizes to be used as a gemstone in jewellery.

moissanite ring

What is Diamond?

Diamond, which in reality is a carbon, is the hardest known substance to mankind and is also known for its sparkle and brilliance. These attributes of diamonds have gained them a special place in the world of jewellery, and women have always been mesmerized by diamond, no matter in which shape or form they arrive. No other gemstone can match the brilliance and shine of the diamonds. Diamonds are also very durable, and thereby are safe as a medium of investment.

Difference Between Moissanite and Diamond

What is the difference between Moissanite and Diamond?

• Diamonds are naturally occurring. Moissanite is mostly produced in labs.

• Diamonds are extremely rare and take years to develop and, therefore, are much more expensive than any other stone. Moissanite is developed easily and can be obtained at a much lower price.

• When viewed through a jeweller’s loupe, the Moissanite shows doubling signs. A diamond does not show such signs.

• Diamonds are singly refractive whereas when light passes through a Moissanite, it produces a rainbow effect.

• Through magnification, pipe-like inclusions can be seen in a Moissanite. This cannot be seen in a diamond.

• Diamonds are classified into grades. Moissanite is not.


Photos By: Jo Amelia Finlay Bever (CC BY 2.0), Koshy Koshy (CC BY 2.0)

Further Reading:

  1. Difference Between Crystal and Diamond
  2. Difference Between Diamond and Graphite
  3. Difference Between Real and Fake Diamond
  • Antony Clements

    I only just found your article, and I need to correct you on a few things. The person who discovered Moissanite was Dr Henri Moissan, not Dr Henry Moissanite. The synthesis of Moissanite was not an attempt to create a synthetic Diamond. Moissanite is a naturally occurring stone that has very little presence on earth, because it is not an earthly stone. The conditions of our solar system are not right for Moissanite crystals to form, no exceptions. all natural Moissanite that is found comes from extra solar sources. The reason why Moissanite was first synthesised was as an abrasive powder, not as a gemstone. Moissanite is often found as inclusions in diamond. 99% of natural Moissanite is not large enough nor good enough quality to use as a gemstone. If you do happen to find a large enough natural Moissanite that is of gem quality, you will be paying 2 to 3 times the price for it than what you would do for a diamond of the same size and quality, this is why efforts were made to produce synthetic Moissanite of gem quality. Not as a Diamond simulant. Diamond does not have much in the way of “fire”. Diamond has a lower refractive index, roughly .2 to .3 less than Moissanite, and also has a lower dispersion, which is less than half that of Moissanite, .104 compared to the .044 of Diamond. Diamond has a hardness of between 9.5 and 10 on the Mohs scale, depending on purity. Moissanite has a hardness of 9.25 to 9.5. It is the second hardest stone in nature. When compared next to each other Diamond looks positively dull and boring, which is why I will never made Diamond jewellery. Please stop trying to compare them.