Synthetic diamond - Wikipedia
A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is a diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is created through geological processes and ...
Lab-Grown Diamond Jewelry: What are Synthetic Diamonds? - GIA …
2016年12月13日 · Synthetic diamonds are grown in laboratories and have essentially the same chemical composition, crystal structure and physical properties as natural diamonds. They’re real diamonds and not ‘fakes,’ but they are not the same as natural diamonds.
What is a Man Made Diamond Called? Synthetic Gemstones Guide
2023年12月17日 · Man-made diamonds, also referred to as synthetic or lab created diamonds, are real diamonds produced in a controlled environment as opposed to the natural geological processes. Unlike imitation gems, these created diamonds have the same physical, chemical, and optical properties as mined diamonds.
Synthetic diamond | Definition, Techniques, & Facts | Britannica
2024年10月19日 · synthetic diamond, man-made diamond that is usually produced by subjecting graphite to very high temperatures and pressures. Synthetic diamond resembles natural diamond in most fundamental properties, retaining the extreme hardness, broad transparency (when pure), high thermal conductivity, and high electrical resistivity for which diamond is ...
Lab Grown Diamond Guide | Natural vs. Lab Diamonds - Brilliant …
Lab grown diamonds (also known as lab created diamonds, man made diamonds, engineered diamonds, and cultured diamonds) are grown in highly controlled laboratory environments using advanced technological processes that duplicate the conditions under which diamonds naturally develop when they form in the mantle, beneath the Earth’s crust.
Simulants, Moissanite and Lab-Grown Diamonds - GIA 4Cs
We examine every diamond to determine if it is natural, treated or laboratory-grown. Our graders evaluate each laboratory-grown diamond with the same expertise and precision as natural diamonds. Our GIA Laboratory-Grown Diamond Report provides detailed color and clarity specifications as well as a plot of the stone’s clarity characteristics.
Features of Synthetic Diamonds | Gems & Gemology
2017年11月8日 · The chart provided here offers a summary and reference guide for the growth parameters and characteristics of both rough and faceted samples grown by the two major methods of synthetic diamond production: high-pressure, high-temperature (HPHT) growth and chemical vapor deposition (CVD) growth.
Identifying Synthetic Diamonds - International Gem Society
Identification. You can identify CVD diamonds fairly simply. They have a unique strain pattern that doesn’t resemble that of natural diamonds and strong red fluorescence. In addition, they lack the typical “Cape Line” at 415 nm on their absorption spectrum. Instead, they present a strong line at 737 nm. HPHT Diamonds.
About Synthetic Diamonds - GIA 4Cs
A Synthetic Diamond is man-made, the result of a technological process, as opposed to the geological process that creates natural diamonds. Synthetic diamonds have essentially the same chemical composition, crystal structure, optical, and …
Synthetic Diamond Articles from Gems & Gemology
The list of articles below chronicles GIA’s research efforts in this field to understand and identify synthetic diamonds. They are here for you to click, view and download. Observations on CVD-Grown Synthetic Diamonds: A Review