Moissanite VS Diamond

Moissanite vs Diamond: Which One Should You Buy?
edited by OgilvieGems South Africa’s Premier Hand Crafter of Fine Jewelry

Moissanite is affordable and has the most incredible brilliance ever recorded, so much so that its knows as the worlds most brilliant Gem, however the question is; is the Worlds most Brilliant GEM the right diamond alternative for you?


Moissanite VS Diamond | South Africa | OgilvieGems


Moissanite is a gemstone originally discovered in a meteor crater. So it’s literally a space rock, I know its cool right. Space Diamonds are what they are referred to by those who have some what a gem stone fetish.

Moissanite looks a lot like a diamond. They’re both clear and sparkly. But moissanite is not a fake diamond and shouldn’t be thought of as one. It’s a beautiful gemstone in its own right. In fact, Natural Moissanite is so rare and so amazing that it is literately the most rare and precious gem ever discovered.

Because of how much a moissanite looks like a diamond, it has become the most popular diamond alternative.

Moissinate was discovered in Arizona by Dr. Ferdinand Henri Moissan (hence the name) over 100 years ago. Only a tiny bit of it was found. It is so rare that all the moissanite we have today is lab grown.
Moissanite is a naturally occurring silicon carbide or other wise known as Diamond Carborundum. Silicon carbide is the compound of silicon and carbon. Its chemical name is SiC (Isotopic Ratios of Carbon & Silicon). SiC is characterized by high strength and exceptional hardness.

Both moissanites and diamonds make beautiful engagement rings. With either option, you’ll reap these benefits:

Durability: Moissanite rates 9.25 on the Mohs Scale of Hardness. It’s second only to diamonds (which have a rating of 10). They’re both hard enough for everyday wear, and won’t scratch or break easily. P.S Both will break this hardness is about molecule structure and not if it will break or not.

E.g. If I take a sledge hammer and lightly tap on a wall (I will not break the wall), yet if I hammer the wall with all my strength then suddenly the wall crumbles, the question is then? Was the wall harder than the hammer the first round? I mean after all the wall did not break? No its simply that there was not enough force applied.

Did you know Diamonds are more brittle than Moissanite and can break easier? Remember, whether a diamond or a moissanite will break is all relative to the force applied onto the stone.

Sparkle: Both are beloved for their beautiful sparkles. But some astute observers can tell a difference – Around 10% of qualified jewelers can tell the difference between Moissanite and Diamond of 1.5ct and less.

Moissanites usually have more of a rainbow sparkle, while diamonds emit a combination of colorless sparkle, rainbow sparkle, and flashes of light. Both are beautiful, with Moissanite being exceptional. This however is exceptionally hard to detect in natural lighting without the correct equipment.

Cut: Both diamonds and moissanites are available in a variety of shapes. But round is the most popular for both choices. The round brilliant cut offers the most sparkle and appears the most white. On average Moissanite outweigh Diamond Cuts 10/1.


They are lot less expensive than diamonds: For example, you can get a 1-carat, colorless moissanite for R14 900.00, where a near-colorless, 1-carat diamond costs around R89 900.00

Extreme brilliance: Moissanites are very sparkly. They have a high refractive index. This creates a greater sparkle than that of a diamond.

Better clarity: Moissanites are not sold unless the clarity grade is VS or above. This grade means that there are no visible flaws. Diamonds, on the other hand, can have flaws that can be seen with the naked eye.

Ethically created: Unlike diamonds, moissanites aren’t mined from the Earth. Moissanite is grown in a controlled lab environment. This eliminates the worry of unfair labor practices and warfare. They also have a smaller carbon footprint. All of these reasons make moissanites an eco-friendly choice for an engagement ring.

Lifetime Warranty: You should only stick to Moissanite Retailers who offer a lifetime warranty. Charles and Colvard have been at this for 30 years and have perfected Moisaanite in every way, they are the original re-creators and patent holders of the recreation of Moissaniote and outweigh any other manufacturer a 1000/1. Not all Moissanite is created equal. Its Ferrari vs KIA. Both are cars, both have combustion engines, yet they are worlds apart.

OgilvieGems, South Africa’s Premier Hand Crafter of Fine Jewelry are offical retailers of Charles and Colvard.

OgilvieGems | Charles and Colvard | South Africa | Diamond VS Moissanite  |


Diamonds are pure carbon crystals, with no addition of Silicon, wheras Moissanite is a combination. They take millions of years to form. They make up the most durable, natural substance available, outside of Moissanite.


We want you to understand the possible downsides of both diamonds and moissanites. Taking the good with the bad, you can make the right decision for you and your loved one.

Visually the biggest difference between a moissanite and a diamond is that a moissanite has more fire than a diamond (rainbow flashes of light). In stones under 7.5 mm (aprox 1.50 carat), this isn’t that noticeable, but the bigger the stone gets, the more noticeable the fire is. The larger the stone, the more you will see the difference between a moissanite and a diamond if you have the right equipment and a keen eye.

Moissanite downsides (and yes there are)

Moissanite is not a diamond. But then again we are not selling or buying it as a diamond alternative, rather as the worlds most brilliant gem, a gem of its own, so in fact it has no down side.

If your sweetie expects a diamond, she may be disappointed, if she finds out your lied. Discuss it with her. Be honest.
Tip: Whatever you do, do not try to pass off a moissanite as a real diamond. She’ll find out sooner or later.

Moissanite stones are usually slightly warmer toned (equivalent to near-colorless, however Charles and Colvards Colorless range changed the game entirely making it virtually impossible to tell).

Diamond downsides (and yes they too have many):

They are costly. You may only be able to buy a smaller rock because of the cost of diamonds. But you can buy a larger moissanite for a fraction of the cost of a smaller diamond while out lasting, out shining and out performing it on every level.

Did you know? Diamonds cost so much because the diamond cartel controls the supply and price. But in reality, they’re not rare at all. A diamond miner in Africa only makes a few bucks for the several thousand dollar sparkler on her finger. Moissanite, on the other hand, costs closer to the actual value. (Did you know the tangible value of a diamond is so low that a Moissanite makes a better investment ünfortunately we are not dealing with tangibility, rather with fixed costings).

They aren’t always ethical. Unless you know how to find a conflict-free diamond, your diamond could have blood on it. Even if it doesn’t, it could be mined from somewhere with unfair labor practices and unsafe working conditions.

They are possibly fake: There is a huge influx of fake diamonds in the market, fake diamonds that test as real diamonds. There has been a huge surge in diamond nanotechnology coated cubics that test as a diamonds, but remain soft, brittle weak and lose their properties in time.

Certification Issues: There is only one certification you can trust and that is GIA, there have been too many reports over over grading and false diamonds getting certification cards from other authorities. Only GIA has thus far been free of scrutiny.

No Warranty: If it breaks it breaks, if its over graded its of no value. Certification and Warranty are not the same. Certification does not carry any guarantee.


OgilvieGems are South Africa’s Premier Hand Crafters of fine Jewelry, are mainly suppliers to the industry, however they do supply the public directly at rates up to 40% Below Retail. You can visit them at https://ogilviegems.co.za or email them at

Are you considering a diamond alternative but don’t think moissanite is for you? Here are some other affordable options:

Cubic zirconia: CZs are always colorless and flawless. To the average person, it’s hard to tell the difference between them and diamonds. They’re literally cheap fake diamonds, so you and your sweetie must be on the same page about this. The chances of them breaking, fading and cracking are massive.

Goshenite: This is the White brother of Morganite, Emerald and other Beryls. They are all of the same beryl family. It’has more a scattered cloudy look to it, near colorless, but visibly very different. Kinda funky in a way, however also a weaker stone and chances of breaking are huge.

White Sapphires: Sapphire is a precious gemstone suitable for engagement rings. However, white sapphires tend to look a little cloudy (i.e. not completely clear). They also don’t emit any fire or scintillation, thus they’re not as sparkly as a diamond. But being that it is quite hard, it can be worn daily. The cost is around R25 000.00 a carat.

White Topaz: If you’re on a tiny budget but still want a real gemstone, consider white topaz. But beware: it’s softer so it scratches more easily, which could make it look cloudy and less brilliant. It also doesn’t have the kind of sparkle a diamond has. White topaz is very inexpensive- about the same price as CZs.

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One thought on “Moissanite VS Diamond

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