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Lab-grown diamonds: what you are actually buying
A lab-grown diamond is a diamond. It is the same carbon crystal as a mined diamond, with the same hardness (10 on the Mohs scale, the hardest natural material), essentially the same physical, chemical and optical properties. Only specialized laboratory equipment can tell a grown diamond from a mined one. The difference is origin: instead of forming underground over millions of years, the crystal grows in a laboratory over a few weeks, by one of two methods, CVD (chemical vapor deposition) or HPHT (high pressure, high temperature). The method is... Read more...
How to verify an IGI certificate
How to verify an IGI certificate
Every ORVESSA piece comes with one certificate from IGI, the International Gemological Institute, covering all of its stones. IGI is an independent gemological laboratory: it grades stones; it does not... Read more...