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I1/I2/I3
Included.
Inclusions
are visible to the unaided eye.
IF
Internally flawless. An internally flawless diamond is extremely rare and shows no
inclusions
when examined using 10x magnification. It can have some minor
blemishes
such as surface grain lines,
naturals
and extra facets.
IGI
I
nternational
G
emological
I
nstitute. One of the largest, most respected gemological institutions in the world. The IGI is an independent laboratory whose trained gemologists grade diamond quality and provide a grading report along with each stone they grade.
I Color
Near-colorless
. Color is slightly noticeable.
Inclusions
An inclusion is a type of clarity characteristic enclosed within a gemstone that might extend into the diamond from the surface. Together, inclusions and
blemishes
help establish a gem's identity and quality.
Indented Natural (IndN)
A portion of the rough’s original surface which dips below the polished diamond’s surface.
Internal graining (IntGr)
Lines, angles, or curves that might appear whitish or colored.
Invisible Setting
Invisible-set diamonds are set very closely together, with the metal concealed underneath the diamonds, giving them the appearance of a smooth continuous surface. It allows an increased amount of light to enter the stones since there are no prongs or bezels impeding the light’s entry.