A guide to buying moissanite in China

With the popularity of moissanite, more and more people are choosing moissanite jewelry as their daily wear for various occasions. China is the world’s largest producer of moissanite, but the quality of moissanite in the market is different, and the price varies significantly because there is no uniform standard. So how should we choose a China moissanite?

First, let’s understand how to distinguish the quality grade of white moissanite?

  • 1. For the white moissanite, the grade of moissanite on the market is classified according to the grade of diamond, but in reality, the quality of moissanite is not quite up to the grade of diamond. This is due to the nature of moissanite itself. The best color of moissanite, D color, is actually the EF color of a diamond, F color is actually the GH color of a diamond.
  • Many Chinese cutting factories purchase generic GRA, GRI, GRD, IGIA and other English certificates from packaging printers. When a moissanite dealer sells a piece of moissanite, he immediately girdles it according to the code on the certificate. Therefore, some manufacturers’ certificates have no real meaning.
  • 2.Cutting:The quality of moissanite is not only the color and clarity grade, but also the cut is very important, which can determine the quality of the moissanite. The high quality moissanite is carefully hand cut and processed by the cutter, and every angle is precisely calculated so that the moissanite can create the most ideal refraction effect. All the light entering the inside of the moissanite will be refracted together, creating a dazzling fire color. Low quality moissanite, on the other hand, is not cut properly and some of the angles are either too deep or too shallow, all of which cause the light to diffuse and fail to coalesce together.
  • 3. Clarity: The conventional clarity is VVS, FL /IF clarity is relatively rare. High-quality moissanite has extremely rare impurities that are indistinguishable to the naked eye and do not have the slightest effect on the refraction of light. Low quality moissanite, on the other hand, has more impurities, which affects the refraction of light.
  • 4, For colored moissanite, the most important thing is the color, whether it is the original color, and the second is the cut, the hand cut can make the stone more lustrous and make the color better, the clarity is less affected.

Second , know about the status of moissanite in china

  • Moissanite material is mainly produced by several Chinese material research institutes, such as CETC (UNIMOSS), TankBlue, SICC, Synlight, etc. All are relatively good moissanite raw materials. Whether the stone is cut from high grade material or from the shredded material. The color can also vary greatly, white color with blue, gray color or other bad colors. A good moissanite depends not only on the provider of the raw material, but also on the processing of the cutting and polishing factory.
  • The main moissanite cutting factories in China are in Guangzhou, Shenzhen and Wuzhou, Guangxi. Wholesale markets are also located in these places: Panyu and Liwan Square in Guangzhou, Shuibei in Shenzhen and Wuzhou Gem City. Wuzhou, in particular, is the artificial gemstone capital of the world, where 80% of the world’s artificial gemstones come from and where there is a complete industrial chain. Most of the finished moissanite in China comes from Wuzhou. The same material, but with different cutting equipment and techniques, results in a difference in the quality of the finished moissanite.
  • Many moissanite factories use only ordinary grinders to produce moissanite in order to reduce costs, which is what we call machine cutting. The quality of the cut is not very consistent. These mainly focus on the low price and low quality moissanite.
  • Some cutting factories use diamond cutting equipment to cut moissanite, so that the cutting and fire of the moissanite is closer to that of a diamond. Of course, the cost is also higher. Tianyu moissanite is cut with diamond cutting equipment to ensure that each moissanite is of high quality, giving customers a pleasant buying experience.
  • Loose moissanite is made from large pieces of raw material that are cut small and polished into facets. A large piece of several kilograms, with white parts and darker/cloudier parts, so the ability to select the material is also important. After cutting the moissanite, the factory will take the stone to be enhanced. If the moissanite is a bit cloudy, it is stuck with grease and dust so that you can wash it with alcohol, and it will shine again. Normal moissanite will not turn yellow or cloudy over time. However, in some cases, moissanite will become cloudy; that is, after polishing, a few unscrupulous merchants will use the strong acid hydrofluoric acid (HF) to clean the moissanite to enhance its color. This requires us to look for some long-standing and reputable merchants to buy from.
  • In addition to the white moissanite diamonds we see every day, there are also blue, green, gray, black, fancy yellow, golden, aquamarine, pink, etc. Colored moissanite diamonds can be divided into two categories, one is the natural growth of crystals, that is the original color, and the other is the color coating, the natural growth of crystals of colored moissanite diamonds are mostly green, champagne, and yellow, black, blue, coffee, etc., while the other more vivid colors of moissanite diamonds are basically the color of the artificial coating. (pink, golden yellow, garnet red, rainbow): the color coating is simply a coating on the surface of a colorless stone, which can be a poly crystalline diamond film or a hard carbon film, thus turning the stone into the desired color, enhancing the value of the stone and attracting consumers’ attention. For example, pink moissanite is the pink color created by the coating. These artificially coated colored moissanite diamonds may change color and fade if burned with fire, and the color retention period is short, only about one year. This is the reason why some of the colored moissanite diamonds purchased by some of you may have lost their color.
So how can we tell if the moissanite diamonds we buy have been coated?

Firstly, we can go through the organization that specializes in testing moissanite diamonds to test them. We can’t tell the difference with our naked eyes, and we can only understand clearly through professional equipment testing.

Second, you can use fire to test. After the coating layer is burned by fire, it will come off from the Moissanite diamond.

Third, in addition to the above two methods, then only after the test of time, after wearing for a long time, if the Moissanite diamond appears to lose color, then it is coated Moissanite diamond.

 

In general, to get the right moissanite in China, we need to do more comparisons and find a merchant with a good reputation, wholesalers or retailers can buy samples first, individual customers can go to forums to see other people’s reviews, and many forums will have customer reviews on them, such as Reddit, price scope, wedding bee.

You might also enjoy

Design your own style and start at any budget

Bring your love to life with a handcrafted design that perfectly suits your relationship, budget and style. Our expert artisans will pour their passion into every detail of your beautiful custom jewelry.

Custom now

Bring your love to life with a handcrafted design that perfectly suits your relationship, budget and style. Our expert artisans will pour their passion into every detail of your beautiful custom jewelry or diamonds.

We respect your confidentiality and all information is protected.