- #IGI VS.GIA HOW TO#
- #IGI VS.GIA FULL#
The number matches the one on your grading certificate and serves as positive identification that it’s your diamond. GIA also will laser-inscribe an identification number on the diamond’s girdle that is visible under 10x magnification.
#IGI VS.GIA FULL#
The GIA Diamond Dossier® is a more concise version of the full report and is available for loose diamonds between 0.15 and 1.99 carats. It also includes a diagram of the diamond showing any inclusions that affect clarity. The GIA Diamond Grading Report provides scientifically determined information on shape, clarity, color, cut, carat weight, proportions, finish and treatments. The private laboratory issues two types of reports. Today, GIA grading certificates are considered the hallmark of integrity in the diamond world. GIA pioneered diamond grading in the 1940s, creating a consistent way to describe a diamond in a common language.
Some grading labs offer optional services, including microscopically inscribing the diamond certificate number on the edge (or “girdle”) of the diamond as a security feature.ĭiamond certificates are issued by these well-known independent gemological laboratories: Gemological Institute of America:. Each diamond certificate is marked with a unique number that matches the exact diamond it describes. Because no two diamonds are exactly alike, the graders reach a consensus to make sure the grade they assign is accurate, consistent and reliable. Several graders evaluate an individual diamond separately. The grade is based on a scientific reading of the diamond’s characteristics using specialized equipment designed just for grading diamonds. They use diamond graders and gemologists who undergo intensive training and have passed tests assessing their ability to correctly grade diamonds. These labs depend on repeat business so they have to maintain a reputation for accuracy and integrity. These laboratories don’t sell diamonds and have no connection to diamond mines, dealers or retailers, so they have no vested interest in the grade they give a diamond. You can consider a diamond certificate issued by an independent gemological laboratory reliable because: Because no two diamonds are exactly alike, a diamond certificate can even serve as identification in the event of loss or theft.īut can you trust the diamond certificate to be accurate and unbiased? To answer this question, you have to consider the source. File it with your important papers afterward, and you’ll have easy access anytime you want it. Flawless diamonds have no visible inclusions or blemishes under 10x magnification, but they are very expensive and exceptionally rare, representing less than 1% of all finished diamonds.Ĭheck out the diamond certificate before purchasing a diamond engagement ring so you can make a more informed decision. Some reports include a diagram of the diamond showing its inclusions, which are naturally occurring foreign materials in almost all diamonds that can affect the way light travels through the diamond. Light performance, measuring the bright white light (brilliance), bright color light (fire) and scintillation (sparkle) of a diamond. A diamond’s characteristics: proportions, finish, treatments and more. The 4Cs of diamond quality: the color, clarity, cut and carat weight of a specific diamond viewed under 10x magnification. A diamond certificate contains most of the important information you should know about a finished diamond, including: A diamond certificate, also called a diamond grading report, diamond dossier, diamond quality document or diamond light performance certificate, can help. Several graders at an independent lab evaluate an individual diamond separately, and then reach a consensus to make sure the grade they assign is accurate, consistent and reliable Add to that the emotional demands of choosing a diamond ring she’ll love, and soon you might feel like your head is spinning. Who knew that choosing a diamond could raise so many questions? The technical information alone can be daunting at first. #IGI VS.GIA HOW TO#
If your diamond comes with a certificate, how do you know it’s legitimate? Learn how to read the “cert” and know where it comes from.
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