Introduction to RAGAZZA lab-grown gemstones

Lab-grown gemstone signifies the beauty created by man through hard work. The charm of lab-grown gemstone can compete with that of natural gemstone, whether in terms of color or purity.



1. Moissanite

Moissanite is a kind of lab-grown gemstone originating from the United States. Its appearance is very similar to that of diamond, and their difference is difficult to tell with just naked eyes. A well cut moissanite can be 95% similar to diamond.


Moissanite can also pass the test of a diamond tester (Thermal Conductivity Meter), and its hardness is second only to diamond, which is the hardest (diamond has a hardness of 10, moissanite has 9.25, ruby and sapphire 9, most metals 3 to 4). Therefore, it is very sturdy and durable, and is a kind of gemstone that will not degenerate.


Moissanite cost approximately 10% the price of diamond. Appearance and durability-wise, moissanite is well worth buying and is the most ideal substitute of diamond.

2 carats moissanite 18K ring




2. Lab-grown ruby and sapphire

Lab-grown ruby and sapphire is another kind of lab-grown gemstone. They have similar appearance and counterpart components as natural gemstone, as well as the same hardness and durability. Lab-grown ruby, sapphire and emerald, when compared with their natural counterparts, have supreme appearance because their production method is relatively easier, where their purity can be controlled more effectively. Lab-grown gemstones are thus less likely to have flaws and have more colors for consumers to choose.

5 carats lab-grown sapphire 18K ring



3. Lab-grown diamond

Lab-grown diamond IS diamond and is also called CVD or HPHT diamond. While moissanite share 95% similarity to diamond in appearance but is different to diamond in terms of component, Lab-grown diamond has the same components as diamond and the diamonds, lab-grown or not, look 100% the same.


Growing lab-grown diamond is difficult, as the laboratory needs to simulate the temperature and pressure of which natural diamond can grow. Then a small diamond granule will be used as the diamond seed and be mixed with carbon atom for crystallization.


Since lab-grown diamond has the same component as natural diamond, the former has already been recognized as “real diamond” by international appraisal institutes.

Lab-grown diamond can pass the test of diamond testers and comes with diamond certificate. Its price is about 30% of that of natural diamond.

2 carats lab-grown diamond (F/SI1/EX)