Diamond cut into any shape other than a round brilliant cut. Some examples of fancy shape diamonds are: princess cut, emerald cut, oval cut, marquise cut, heart cut, pear cut, and asscher cut diamonds.
Fancy Colour
Any positive diamond colour other than white, brown, or grey with a significant level of saturation. Natural fancy colour in diamonds is rare and valuable; the colour is caused by either impurities or structural abnormalities. Three factors to consider when grading a coloured diamond are body colour, tone, and saturation. Examples of fancy colours, or ‘fancies’: yellow diamonds, orange diamonds, pink diamonds, red diamonds, blue diamonds, purple diamonds, and green diamonds. Examples of non-fancy colours are grey and brown.
Faceted Girdle
Facets
Any one of the flat, polished surfaces on a diamond.
1 Table
Eye-Visible
Refers to clarity of a diamond with inclusions that are visible to the naked eye, without magnification.
Eye-Clean
Refers to the clarity of a diamond that has no inclusions visible to the naked eye – magnification is needed to see any inclusions that may be present.
Extra Facet
Facets added or remaining on a polished diamond in excess of the number usually found on a particular cutting style. Extra facets are added to remove surface imperfections, and inclusions located near the surface, without losing sizeable carat weight. Extra facets affect the polish grade of a diamond.
Equivalent Colour Grade (ECG)
Occasionally ‘colourless’, or cape series diamonds will have a tint of brown or grey that is not visible face-up. These diamonds are graded on the same scale of color saturation as cape series diamonds, but are graded ‘ECG’ for hue. Diamonds with ECG grading are of lower value than those with no hue. Click here to see where to find hue on a diamond Certificate.
Emerald Cut
Eight Cut
Diamond cut or shaped in an old-style cut with only sixteen facets plus the table – eight on the crown and eight on the pavilion. This simple diamond cut is still used at times today for extremely small diamonds. Also known as a ‘single-cut‘ diamond.