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E Color
A rare and
colorless
diamond.
EGL
E
uropean
G
emological
L
aboratory. Established in 1974, the EGL is a well-respected independent laboratory with offices in Antwerp, New York, Los Angeles, Johannesburg, Paris, Israel and Seoul whose trained gemologists grade diamond quality and provide a diamond grading report along with each stone they grade.
Emerald Cut
The emerald cut is a
step-cut
diamond that has rows of facets that resemble the steps of a staircase and are usually four-sided as well as elongated.
Extra Facet (EF)
A small facet most often found at the
girdle
.
Eye-Clean
Eye-clean is an expression that jewelers use to designate a gem whose flaws or
inclusions
cannot be detected without a
loupe
.