Please click on the highlighted fields in the image to see details.
A unique number that identifies each item of jewelry or diamond within the GS Laboratories exclusive database system
Identification of diamond or gemstone
the shape of the diamond and/or colored stone. Refers to the outline and facet arrangement.
Precise measurements, measured in millimeters
Measured in carats, and expressed to the nearest hundredth. One carat equals 0.20 grams
Clarity grade of the diamond, graded on a scale from FL (Flawless) to I (Imperfect) (for more information, please see “Diamond Grading”)
Color grade of the diamond, graded from colorless to light yellow (for more information, please see “Diamond Grading”)
Colourless | D E F |
Near Colourless | G H I J |
Slightly Tinted | K L M N |
Very Light Yellow | O P Q |
Light Yellow | R S T |
Yellow | U to Z |
Fancy Colour |
Cut grade of the diamond, graded from Ideal or Excellent to Poor (for more information, please see “Diamond Grading”)
Assessment of smoothness of surface of diamond and facet alignment; both graded on scale ranging from Excellent to Poor
A digital colour photograph of item of jewelry, diamond, or gemstone
Laser inscribe your diamond with a unique identification number or text. See “Laser Inscription” for more information
Each certificate bears the signature of a gemologist
Profile image of diamond indicating exact proportion measurements (for more information, please see “Diamond Grading”)
A representative image of the diamond which shows the nature and location of inclusions within the diamond