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Why are some moissanite cheap, but some expensive?



The same actually goes for diamonds. One carat of diamonds can range from HK$10,000 to some ten million dollars (such as red diamonds).


Moissanite are increasingly favored by consumers around the world, but the price of moissanite in the market is also very variable, ranging from as low as several hundred dollars per carat to as high as several thousand dollars in the market. What exactly caused such a huge difference in moissanites’ price?


Reason 1: Production technology

The first manufacturer of moissanite is a company from the United States. The artificial moissanite have been of extremely high quality since being developed, so their price is high, at around HK$3000 per carat or more. However, with the introduction of the artificial moissanite cultivation technology in China, along with the mass production of low-cost crystals, the retail price of artificial moissanite dropped to the level at around HK$300 to HK$1000.

Reason 2: 4C grading

As with diamonds, moissanite quality can also be distinguished with the “4C” grading. The first C is carat, which is the weight (or size) of the gemstone. The larger the gemstone , the more expensive it is. The second C is color, the more transparent and colorless it is (D color), the more valuable, and thus the closer it is to light yellow (J color or below), the cheaper. The third C is clarity. Moissanite on the market are generally at above VS grade (very slightly included), while the better ones are of FL grade (flawless). Consumers can use magnifying glass / scope to see if the gems are flawed. The fourth C is cut. Moissanite produced in different places will have different grading, ranging from fair to excellent.

When buying a moissanite, you can ask for the assistance from jewelry shop and use different magnification tools to inspect at its color, clarity, and cut of moissanite, and check its details shown on the certificate (such as GIA certificate).


Reason 3: Certificate

This is the same as examining diamonds. Diamonds with GIA identification can cost much more than diamonds without it. The reason is that professional testing can help consumers understand the quality of the gems they bought, and avoid buying inferior or even counterfeit gems. Many test reports you see on the market nowadays are actually fake reports from China, like GRA, GMA, IGIC, and IGTC, of which the test results are not even from tests. A common example is that the certificate stated that the gem is of D color, but one can see its light yellow easily with naked eyes (H color grading or below of GIA standard); or the certificate stated the size as 6mm, but it is only 5.85mm in reality. These are the examples of fake reviews. Do moissanite have GIA certificate?


Moreover, while the price of moissanite is only one-tenth of that of diamonds, some unscrupulous merchants who will sell cubic zirconia (often called zircon, high-carbon diamonds, Soviet diamonds) as moissanite. These cubic zirconias are inferior to diamonds and moissanite in terms of brightness, hardness, durability, stain resistance and the like. Together with their low cost and low-class cultivating technology, cubic zirconias basically have no market value. Therefore, to avoid purchasing substandard moissanite, GIA certification is what you should look for.




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