Understanding the Lab-grown Diamond Certificate
A cultivated diamond refers to a diamond produced in a laboratory through certain techniques. It has the same physical properties, chemical composition and crystal structure as a natural diamond, the only difference being the birthplace.
To prove that grown diamonds are real diamonds，Fiorese Jewelry can provide you with the identification services of the authoritative testing institutions of Gemological Institute America and International Gemological Institute.Let's find out
GIA Gemological Institute of America was founded in 1931. GIA majors provide courses such as research, sales, and identification. The 4C standard proposed by GIA is a general standard in the international jewelry industry. GIA lab-grown diamond and natural diamond certificates are the same, provide 4c description, and the lettering on the waist is engraved with the words "LABORATORY GROWN" in addition to the certificate number.
Authentication Content：Lab grown diamonds.
Specifications: min diameter * max diameter * height.
Carat Weight: Diamonds are measured in carats, 1 carat = 0.2 grams. The heavier the diamond, the rarer it is.
Color Grade：GIA cultivated diamond color is only divided into 5 grades, namely: Colorless (DEF), Near Colorless (GHIJ), Faint (light yellow, KLM), Very Light (N-R), Light (S-Z) and natural diamond color grade detailed grading Likewise, lab-grown diamonds are more general and not as detailed as natural diamonds.
Clarity Grade: Use a 10x magnifying glass to observe the interior and exterior of the diamond, and divide the clarity into 6 grades, namely (FL) Flawless / (IF) Internally Flawless, (VVS) Very Slightly Flawed, (VS) Slightly Flawed, ( SI) small flaws, (P) major flaws.
Clarity grade: Use a 10x magnifying glass to observe the interior and exterior of the diamond, and divide the clarity into 6 grades, namely (FL) Flawless / (IF) Internally Flawless, (VVS) Very Slightly Flawed, (VS) Slightly Flawed, ( SI) small flaws, (P) major flaws.
Diamond Shape: Such as round
Add Identification :the laser engraving on the waist will be engraved with the words "LABORATORY GROWN" in addition to the certificate number.
The last column of the GIA report states that the diamond is a lab-grown diamond.
IGI International Testing Institute was established in Antwerp, Belgium, the world diamond center in 1975, and has become the world's largest jewelry identification laboratory. There are 12 laboratories in many diamond trading centers around the world. Antwerp, New York, Toronto, Dubai, Tokyo, Hong Kong, Tel Aviv , Los Angeles, Mumbai.
The information of the IGI cultivated diamond certificate is the same as that of the natural diamond certificate. The certificate of the IGI international testing organization is basically the same as the description of the GIA certificate, mainly including identification content, color grade, clarity grade, and cut. In addition to the certificate number, the lab grown diamonds are laser engraved on the waist with the "lab grown" logo.
Attention to detail:
There is a QR code mark at the bottom of the GIA/IGI certificate, which can be directly linked to the GIA/IGI report query system, which is convenient for consumers to check the information on the purchase of cultivated diamonds, and the HTHP or CVD production method can be identified in the grade certificate.