the 5 C’s of moissanite

There are four C’s in use when grading gemstones. Colour, Clarity, Cut, Carat (weight) …and this will tell you everything you need to know about moissanite.

But! there is a fifth C – which is just as important as the other four C’s – Confidence.

The quality and enduring value of moissanite can be expressed in those 5C’s and every moissanite sold by Moissanite SA™ is strictly examined prior to being selected for sale.


Some of the leading global suppliers of moissanite still describe the colour (and clarity) of moissanite in diamond grading terms, for example Charles & Colvard.

The internationally accepted standard when grading diamonds for colour is using the letters of the alphabet, from D to Z, D being the whitest and Z by comparison, the most tinted/yellow. Whilst it is clear that moissanite is simply not a diamond and moissanite should not be graded using the same terms as a diamond, the following explanation will provide clarity.

The correct terms to be used when describing moissanite should be colourless, near colourless, slightly tinted and tinted. Other colours like pink, blue, yellow and other colours are also available.

For the sake of simplicity, but not strictly speaking correct, and for purposes of approximate comparison, letters are sometimes assigned to moissanite.

Majestic Moissanite™ is sold in the colourless and near colourless range being DEF and GH respectively as described in the paragraphs above. Charles & Colvard® is sold in the colourless and near colourless range being DEF and GHI respectively as described in the paragraphs above.

Moissanite in tinted colours (more yellow) is available, but after decades of being in the forefront of the moissanite market, we have seen demand mostly in the Colourless and Near Colourless ranges.

We are meticulously strict with the colour grading of the stones we offer for sale to ensure that all the moissanite we supply falls well within the Colourless to Near Colourless ranges as described.


All Majestic Moissanite™ and Charles & Colvard Created Moissanite® gems are precisely calibrated and hand-faceted by master gem cutters to maximize brilliance and spark its ultimate fire that increases the refractive index of moissanite. It is vital that the correct cutting of the angles is achieved to maximize the fire and brilliance of moissanite. These angles are quite different to how diamonds are cut.


As previously mentioned, moissanite is not a diamond and moissanite should not be graded using the same terms as a diamond, the following explanation will provide clarity.

Internationally accepted standards when grading diamonds for clarity is as follows:

  • (FL) Flawless. No inclusions and no blemishes visible under 10x magnification.
  • (IF) Internally Flawless. No inclusions visible under 10x magnification.
  • (VVS1 and VVS2) Very, Very Slightly Included Inclusions, so slight they are difficult for a skilled grader to see under 10x magnification.
  • (VS1 and VS2) Very Slightly Included Inclusions are observed with effort under 10x magnification, but can be characterized as minor.
  • (SI1 and SI2) Slightly Included Inclusions are noticeable under 10x magnification.
  • (I1, I2, and I3) Included Inclusions are obvious under 10x magnification.

The generally accepted grading of a gemstone with few or no inclusions is termed ‘Eye Clean’. This means that when viewed with the ‘naked’ eye, no inclusions are visible. Other terminology used is very lightly included, lightly included, moderately included and heavily included.

Moissanite is created using organic elements, mimicking nature in a controlled environment. So, some moissanite gems have tiny, needle-like inclusions that can develop during the growing process of moissanite.

Inclusions in moissanite are not like inclusions within some other gemstones including diamonds.  Instead of dark/carbon spots that block light, moissanite inclusions (when visible) are mostly caused by micropipes (the lack of material).

Majestic Moissanite™

Majestic Moissanite™ is exclusively sold in eye clean grades. This means that imperfections, if any, cannot be seen with the naked eye. Typically, even using the industry standard 10x magnification, inclusions (if any) will be extremely difficult to see.

Only moissanite that passes our stringent quality standards are made available for sale.

Charles & Colvard®

Charles & Colvard® moissanite is sold in the following grades as described on their website:

  • Forever One IF-VS
  • Moissanite By Charles & Colvard® (MOI CC) SI-I2


Moissanite is visually proportionate to typical diamond carat weights, but is approximately 10% to 15% lighter.

It is easier to sell moissanite by millimetre size rather than weight since moissanite is sold in increments of either 1.0mm or 0.5mm and their corresponding weights matching the millimetre sizes. For example, a 6.5mm round brilliant natural diamond would have a weight of approximately 1.0 carat compared to a moissanite of the same dimension (6.5mm) which has a weight of approximately 0.88 carats.

Simply put, to the eye they appear to be the same size, although the weight of the two stones may be slightly different.


Majestic Moissanite™

Now, new generation, world class premier quality moissanite brought to you by The Market Leaders, Moissanite SA™.

In 1999 we were the first to bring moissanite to the South African market within months of Charles & Colvard launching moissanite to the global markets for the first time ever.

Having been directly involved in the global moissanite markets for more than 22 years, we have made invaluable contacts in several different countries and have direct access to laboratories that produce amongst the best lab grown SiC (silicon carbide) moissanite crystals.

Additionally, and not limited to, we provide a Certificate of Authenticity and a Lifetime warranty on the optical properties of your Majestic Moissanite™ stone, irrespective of who owns the stone. The warranty is fully transferrable at no additional cost. See our Majestic Moissanite™ Warranty tab for more information.

Charles & Colvard® moissanite

Known as “The World’s Most Brilliant Gem®”, with unsurpassed fire and brilliance, this unique created gemstone is the ultimate in affordable luxury. All Charles & Colvard® created gemstones are backed by a Charles & Colvard Certificate of Authenticity and Limited Lifetime Warranty. This winning combination delivers the quality and confidence you deserve while empowering you to express your keen sense of style and great taste. See our Charles & Colvard® Warranty tab for more information.

Charles & Colvard® ensures that your moissanite gemstone is an original of exceptional quality & craftsmanship. Grown in a laboratory, Charles & Colvard Created Moissanite® is a responsible alternative to mined gems, providing jobs without damaging the environment. Charles & Colvard Created Moissanite’s durability means that its beauty and value will endure forever.

Moissanite is one of the hardest minerals on earth and is extremely resistant to scratching, abrasion, breaking, or chipping. Charles & Colvard’s promise to you is that its fire and brilliance will last forever.