A diamond certificate is a document issued by an independent laboratory that confirms and complies with the diamond’s properties and characteristics. The certificate determines the passwords and values of the diamond by determining the features, symmetries, differences, base width and other technical features of the diamond’s 4Cs (Carat, Cut, Clarity, Color). The certification of a diamond provides superior security and assurance in purchasing the diamond.

Diamond Certificate Types
Many independent laboratories around the world issue diamond certificates. The most common are:

GIA (Gemological Institute of America)
AGS (American Gem Society)
IGI (International Gemological Institute)
HRD (Hoge Raad for Diamant)
The diamond certificate explains the diamond’s properties and characteristics in detail. This information includes the properties of the 4Cs (Carat, Cut, Clarity, Colour), symmetry, distance, base width, skin blemishes, fluorescence properties and more. In addition, the certificate includes the laboratory by which the diamond was determined and the date and number of the certificate.
Diamond certification helps them make an accurate assessment when purchasing diamonds. The information contained in the certificate determines the reliability and value of the diamond. Purchasing a diamond without a certificate may underperform on its quality and value. Additionally, since a non-certified diamond cannot be certified after purchase, its value as an investment tool may be lost.
Why Certified Diamond?
A diamond’s certification helps verify the reliability of the diamond and gives ongoing confidence during the purchasing process. The certificate specifies the 4Cs of the diamond as well as other features. These may include features such as symmetries, fluorescence, cut features, and other visual details.
Purchasing a diamond certificate is an important step in purchasing a higher quality diamond. However, it should be noted that not all certifications are equal. Some sellers may manipulate certificates to sell lower quality diamonds at a higher price. Therefore, it is important to ensure the seller’s continued performance before purchasing a diamond.