Moissanite Vs Diamond: Know the Difference

close up photo of grey and diamond ring
Photo by Thorn Yang on

The jewelry industry has various gemstones that used in making different types of jewelry items and they include diamond, sapphire, ruby, emerald, etc. These gems have been in use for centuries to make beautiful pieces of jewelry and even today, people prefer them to other stones. However, the Moissanite vs diamond debate often shows up when choosing amongst jewelry items in the market today.

Moissanite is a type of gemstone that has a hardness of 9.5 to 10 on the Mohs scale. This stone is often confused with diamond because they look similar. However, they are different. In order not to confuse between these two gemstones, it may be important to know the differences between them. Here is a detailed look into the differences. 

1. Chemical Composition 

The main difference between moissanite and diamond is in their composition. Moissanite is composed of silicon carbide (SiC). On the other hand, diamonds are composed of pure carbon. The main difference between the two is that moissanite contains more silicon than diamonds. 

2. Existence and Availability 

Both diamonds and moissanite occur naturally. However, research into moissanite identified it as silicon carbide. In that case, people consider moissanite a synthetic gemstone because manufacturers can create it artificially. 

3. Stone Shapes and Configuration 

With moissanite, manufacturers can cut it into fancy shapes such as pearls, hearts, and marquise. This gives it an upper edge over diamond, which people cannot shape or fashion into any specific shape. 

Manufacturers cut moissanite using laser-cutting process while they cut diamonds using mechanical methods. Laser cutting produces perfect cuts and sharp edges. It also allows for better control of the quality of the product. Mechanical cutting produces rough cuts and dull edges. It is difficult to get a precise cut from this method. 

4. Resistance to corrosion 

Carbon composition in diamonds make them poorly resistant to corrosion when compared to moissanite. On the other hand, moissanite contains silicon carbide, which makes it highly resistant to corrosion. For that reason, moissanite will survive more in aggressive conditions than diamonds will. 

5. Color Composition 

Diamond does not come in many colors because they are naturally occurring the earth’s crust. However, moissanite comes in various color ranges from white to yellowish brown.  Therefore, moissanite offers color variety unlike diamonds and other gemstones

6. Ethical Concerns 

Diamonds are naturally occurring gemstones mined from the earth. Mining makes diamonds unfriendly to the environment. This does not apply to moissanite, which manufacturers create in the lab. Therefore, this is something jewelry lovers consider if they support such a cause. 

7. Sparkle and Brilliance

Moissanite has more sparkle than diamonds due to its high refractive index. Therefore, it shines brighter than diamonds making it a perfect choice for jewelry appearance. 

8. Cost and affordability 

Cost is a key factor to consider when buying gemstones. Moissanite costs less than diamonds because it is cheaper to produce. Mining diamonds is expensive and requires lots of energy. That is what makes diamond products expensive to acquire. 

9. Weight comparison 

Moissanite weighs about 1/10th of a carat while diamonds weigh at least one carat. Therefore, it takes up much less space compared to diamonds. In that case, they are perfect for making lightweight jewelry products. 

10. Hardness and Durability 

Moissanite will last longer than diamonds because it is harder. Moissanite lasts for years whereas diamonds only last for decades. Although both gemstones are good in terms of strength, moissanite will prove more durable than diamonds. This is due to their chemical composition and ability to resist heat and corrosion. 

When choosing between diamond and Moissanite, you must understand these key differences. They will guide you on whether moissanite is right for your needs. Each one of them has unique benefits and drawbacks. The best thing you can do is research and compare before making any purchase. 

Diamond and moissanite are among the hardest natural substances on Earth. Their hardness is measured using the Mohs Scale of Hardness. Diamonds are composed of pure carbon atoms arranged in a crystal lattice structure. For moissanite, the atoms are in a SiC lattice structure. 

For centuries, dealers have used these stones in jewelry manufacturing. Again, they both have many similarities but there are some major differences between them. These differences include chemical composition, existence, availability, weight and cost among others as discussed. 

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