Moissanite vs. Diamond: What's the Difference?

Table of Contents

1. Introduction: Moissanite vs Diamond
2. What Is Moissanite?
3. Is Moissanite a Diamond?
4. Moissanite vs Diamond vs Lab Diamond
5. How to Tell a Moissanite From a Diamond
6. Moissanite vs Diamond: Side-by-Side Comparison
7. Benefits of Moissanite (Mining-Free Advantage)
8. Value and Price Comparison
9. Durability and Everyday Wear
10. Tips for Selecting the Right Moissanite
11. Most Popular Moissanite Ring Styles
12. FAQ

When you're looking for an engagement ring or a piece of fine jewellery that makes a statement, you have to choose between moissanite and diamond more often than not. Both stones are beautiful, both shine brightly, and at first glance, they look almost the same. But they are very different gems in terms of where they come from, what they are made of, how much they cost, and how bright they shine in the light. Knowing these differences will help you make a choice that fits your values, your budget, and your style with confidence.

What Is Moissanite?

Moissanite is a real gemstone that comes from the stars. French chemist Henri Moissan found it for the first time in 1893 in a meteorite crater in Canyon Diablo, Arizona. At first, he thought he had found diamonds, but when he looked more closely, he saw that they were actually crystals of silicon carbide (SiC), which is not found naturally on Earth in gem-quality form. In his honour, the mineral was later given the name moissanite.

Natural moissanite is so rare that almost all of the moissanite on the market today is made in a lab. To make modern moissanite, scientists grow it in controlled laboratory settings that mimic the extreme heat and pressure conditions needed to make silicon carbide crystals. 

Scientists make modern moissanite in a lab where they can control the temperature and pressure. This is similar to how crystals of silicon carbide are produced.

The finished product is a remarkably durable, nearly transparent stone, bearing a striking resemblance to a diamond in both appearance and tactile quality.

Lab-created moissanite comes in a wide array of grades, dimensions, and forms. You'll find, for example, colorless (DEF) and near-colorless (GHI) varieties. This versatility makes it an excellent option for various jewelry styles, ranging from simple solitaire rings to more elaborate halo designs.

Is a Moissanite a Diamond?

No, moissanite is not a diamond, and it's important to make that clear. A diamond is made up of carbon atoms that are arranged in a crystal lattice pattern. In contrast, moissanite is made of silicon carbide. They are two completely different minerals that come from different places in the Earth, have different chemical makeups, and look different when light hits them.

Jbr jeweler is a diamond simulant, but moissanite is not. It is a real gemstone that just happens to look a lot like a diamond. A lot of people who choose moissanite don't do so because they want to replace a diamond. They do so because they really like what moissanite has to offer: more fire, a better price, and an ethical sourcing story that makes them feel good.

Moissanite vs. Diamond vs. Lab Diamond

People often talk about these three as if they are the same thing when they talk about ethical and affordable alternatives to mined diamonds.

A natural diamond is made up entirely of carbon and is dug up from the ground. It took billions of years to form under very high geological pressure, which is why it is so rare and expensive. The only difference between a lab-grown diamond and a mined diamond is where it was made. Both are made entirely of carbon and are chemically, physically, and optically the same. Using either HPHT (High Pressure High Temperature) or CVD (Chemical Vapour Deposition), lab diamonds can be grown in just a few weeks. They usually cost 50–80% less than diamonds that were mined.

Silicon carbide, on the other hand, is moissanite. It is not a diamond, whether it was grown in a lab or not. It has a higher refractive index than diamond (2.65–2.69 vs. 2.42), which means it makes more fire and rainbow dispersion. Some people love this feature, while others think it's too flashy compared to the cool, icy brilliance of a diamond. Moissanite is usually the least expensive of the three choices, but it is still very durable and looks great.

How to Tell a Moissanite From a Diamond

In normal light, it's hard to tell the difference between a high-quality moissanite and a diamond just by looking at them. But a trained jeweller or even a careful observer can tell the two apart in a number of ways.

Fire is the most important sign. Moissanite breaks white light into more colourful flashes than diamond does because it has a higher dispersion rate. Moissanite can throw off bright rainbow-coloured sparkles in bright or direct sunlight that diamonds can't. When people look at the two side by side, this is usually the first thing they notice.

A diamond tester (thermal conductivity probe) used to be the best way to tell stones apart, but moissanite now conducts heat in a way that makes older testers think it's a diamond. You need a multi-tester that checks both thermal and electrical conductivity to tell the two apart correctly. Diamond is not a semiconductor, but moissanite is.

Under 10x magnification, moissanite may show doubling of facets  a slight doubling of lines visible inside the stone due to its double-refractive nature. Diamond is singly refractive and does not show this effect.

Moissanite vs. Diamond Side-by-Side

Benefits of Moissanite Mining Free

The clean sourcing story is one of the most convincing reasons why people choose moissanite. There is no mining, no moving of communities, and no damage to the environment that comes with diamond mining when you buy moissanite. All commercially available moissanite is made in a lab. This is a big plus for buyers who care about where their things come from. You can wear moissanite without worrying about how it was mined or whether it came from a conflict zone.

Value

Moissanite looks just as good as a diamond, but it costs a lot less. A moissanite stone that is one carat can cost between $300 and $600. A natural diamond of the same size and quality, on the other hand, can cost between $4,000 and $8,000 or more. Moissanite is usually 60–70% less expensive than lab-grown diamonds. Because of this price difference, buyers can choose a bigger stone, spend more on a more complicated setting, or just spend their money on something else without losing the ring's visual impact.

At JBR Jewellers, moissanite pieces are made with the same care and attention to detail as any fine diamond ring. This means you get a beautiful piece that will last without having to pay a lot more.

Durability

Moissanite is the second hardest gemstone after diamond, which has a score of 10 on the Mohs hardness scale. This means that moissanite is very hard to scratch and chip, which makes it a good choice for everyday wear, like engagement rings and wedding bands. Moissanite doesn't need special care or settings to protect it, unlike softer gemstones like emeralds or opals. It will stay clear and shiny for years of regular use.

Tips on Selecting a Moissanite

When choosing a moissanite, there are a few important things to think about. First, think about the cut. Round brilliant cuts show off moissanite's fire the best because they spread the stone's light the best. Cushion cuts, oval cuts, or long shapes tend to soften the fire while still giving off a lot of brilliance. If you want a more subdued look with less rainbow flash, these are good options.

Second, think carefully about the colour grade you choose. Colourless (DEF) moissanite is the most popular type because it looks a lot like a high-quality white diamond. Near-colorless (GHI) grades have a very soft warmth that goes well with yellow gold settings. The difference between grades is not very noticeable to the untrained eye in most lighting situations.

Third, think about the size of the carat and the size of the millimetre. A 6.5mm moissanite round weighs about 0.88 carats, which is a little less than a diamond of the same size, but it looks like a diamond of the same size. When you buy moissanite, it's better to compare by millimetre size than by carat weight.

Finally, look at the quality of the metal and the setting. A well-cut moissanite set in high-quality 14K or 18K gold or platinum will look just as polished and fancy as a diamond ring. The setting has as much to do with how the stone looks as the stone itself.

Most Popular Moissanite Rings

Most of the time, the most popular moissanite ring styles are those that show off the stone's natural brilliance. 

The traditional round sparkling patience is still the most popular choice. The stone is the main focus of the minimalist design, which lets moissanite's stunning glitter speak for itself.

People really like oval moissanite rings right now because they make fingers look longer and have a sleek, modern style. The main stone looks bigger and shinier when it is surrounded by a ring of lesser stones in a halo setting. 

Three-stone moissanite rings that stand for the past, present, and future are a classic choice for engagement rings. They have a balanced, timeless look that makes the finger look heavier.

Moissanite vs. Diamond FAQ

Does moissanite get cloudy?

No. Moissanite does not get darker over time like jbr does. Because it is made of silicon carbide, it doesn't break down on the surface like other diamond simulants do, which makes them lose their clarity. Moissanite keeps its natural shine forever with regular cleaning with soap and warm water or a soft jewellery cloth.

How is moissanite made?

Scientists make moissanite in labs by heating it up and letting it grow. Silicon carbide crystals take two to three months to grow in very controlled settings that are similar to the tremendous temperatures and pressures that caused them to form in space. After they have developed, professional gem cutters use the same methods they use on diamonds to cut and facet the raw crystals.

How long does moissanite last?

Moissanite lasts forever and beyond. Because of its Mohs hardness of 9.25, it is resistant to scratches. Moreover, it doesn't break down chemically or lose its optical properties over time.

 A lot of jewellers are sure that a well-set moissanite ring can be passed down as an heirloom, much like a diamond band.

Is moissanite a precious stone?

Moissanite falls into the semi-precious category, unlike diamonds, rubies, sapphires, and emeralds, which are considered precious. This classification, however, is more about tradition than anything else, and it doesn't really capture moissanite's rarity, its hardness, or its value. In reality, moissanite is a top-tier gemstone, holding its own against many precious stones when it comes to both how long it lasts and how it looks.

Checkout some of our  collections :

Lab Grown Engagement Rings 

Moissanite Engagement Rings

Gemstone Engagement Rings

Also Read:

10K vs 14K Gold: Understanding Purity, Durability, and Value