Laboratory Diamonds

What's the difference?

Before we start to talk about human-made diamonds, let me say the most important thing. No matter how we call it: laboratory-grown, synthetic, man-made, or artificial diamonds, they are the same as natural mined, with identical physical structure, chemical, and optical properties. The only difference is the way the diamond was born. Natural diamond was created deep inside the earth mantle, and the synthetic diamond was grown inside a machine press. Both of them were created in the same environment of high pressure and high temperature. Both can be used to drill the hardest concrete walls, cut the glass, or be set into engagement rings. I will tell you even more. There is no such experienced gemologist in the world who can prove the artificial nature of high clarity colorless HPHT synthetic diamonds without special laboratory equipment. High clarity (VVS+) colorless diamonds have no visual difference from earth mined.

There are two ways to grow the diamond. I do not know whether you like to cook or not, but there are two kitchen appliances that, for sure, you are familiar with. They are the microwave and the oven. So we can divide diamond growing machines into "microwaves" and "ovens." Don't smile, please.
It doesn't matter if you look for internal inclusions with the naked eye or by ten times magnification; you will find nothing at all.
The most productive and the most qualitative diamonds are grown in a kind of "oven" by HPHT technology, which means High-Pressure High Temperature. Compared with the kitchen oven, the modern HPHT "oven" weights like a battle tank, up to 60 tons, it has up to 6 meters height and can heat the "baking chamber" to 1500C, keeping the pressure of 60000 atmospheres. The stones by HPHT technology are usually of better quality, in varied colors. We can grow Colorless, Fancy Yellow, Pink, Blue, Green, and Orange tints and colors. It takes from 7 to 10 days to grow one carat of synthetic diamond of good quality. To create a 1500 C temperature and 60000 atmospheres pressure, the "oven" needs a lot of energy for such a long time. This is the reason why synthetic diamonds are only 25-30% cheaper compared to earth-mined stones. The equipment is also extremely susceptible. Even a small change in electricity power stops the growing process inside the chamber.
Even by ten times magnification, your chance to find an inclusion is close to zero.
Another technology is CVD or Chemical Vapor Deposition is "Microwave" in plain language. This technology works much faster and with cheaper production costs, but... But as you know from your lifetime experience, there is always one small but significant word, "but." This technology is relatively young and fresh, and still, it has a lot of issues to be solved. Due to nitrogen-vacancy and hydrogen complexes, CVD synthetic diamonds are usually of brown tints and colors, which are less desirable than other colors of diamonds. It needs post-growth treatments such as in "oven" – High-Pressure High Temperature (HPHT) treatment and sometimes irradiation and annealing, which are applied to these synthetics to fix the brown color of CVD diamonds.
You will have to use the loupe to detect an inclusion. Without the loupe, it is impossible.
Laboratory-grown diamond has become an issue for significant diamond mining, manufacturing, and retail companies. All of them are very concerned about the growing quality and quantity of artificial diamonds on the market. Crystal clear, more transparent laboratory-grown diamonds displaying a better play of colors and much better play of light. Because of the significantly lower price, it became a problematic competitor for naturally mined stone. To prevent synthetic diamonds from being compared to earth mined, Diamond Bourses used all their influence to press on major gemological laboratories to avoid laboratory-grown diamonds graded the same way as earth mined. This was done to prevent the possibility of comparing the earth-mined and the laboratory-grown diamond by the end buyer. For example, GIA in laboratory-grown diamond reports grades Colorless instead of D, E, F colors. As there is no difference between D, E, or F colors, they do not differ between VS1 and VS2 clarity grades, calling it Very Slightly Included. That is why most of the artificial diamonds are graded by IGI gemological laboratory. They still traditionally rank the laboratory-grown stones.
Nevertheless, synthetic diamond production is growing from day today. New factories are opening. The scientists are working on the improvement of technologies. So, shortly, we will see an overall presentation of human-made diamonds on the jewelry market.
You will have to look closely to find an inclusion without the loupe.
In Conclusion

Laboratory-grown diamonds are still not cheap. But the price is twice as lower as natural mined. If you are not concerned about the origin of the stone, if you wish for a more significant and highly qualitative diamond without increasing your budget, you can choose the laboratory-grown diamond.

So, I hope these small secrets will help you make the right choice.
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