Diamonds, What to know.
Carat: The mass of the diamond
Clarity: Clarity measures the internal defects found in any diamond ,also known as inclusions.
Describes diamonds in which a gemologist under favorable lighting conditions, cannot see any inclusions at ten power magnification.
Describes diamonds which have no internal characteristics observable under the the same conditions as (FL), but which have minor surface blemishes that do not penetrate the stone.
VVS1-VERY: VERY SLIGHTLY INCLUDED
Describes diamonds that have very, very small inclusions which are difficult for a gemologist to see at 10x magnification.
VVS2-VS1:VERY SLIGHTLY INCLUDED
Describes stones with very small inclusions which can be difficult to observe with 10x magnification. Inclusions are barely visible to the unaided eye, except on some larger stones or large Emerald Cuts.
Describes stones with small inclusions which are usually obvious when viewed with 10x magnification. Inclusions are difficult to see with the unaided eye, except on larger stones or occasionally with Emerald Cuts.
SI2-SI3-I1:IMPERFECT or PIQUE
Describes stones with medium to large inclusions (Piques) which are usually obvious to a gemologist with the unaided eye. An I1 may have inclusions barely visible or located to the side while an I2 will have numerous inclusions that may be centerally located.
Color: A diamond free of structural and chemical imperfections is perfectly transparent (colorless). Colorless diamonds are the most sought after along with the more exotic fancy colored diamonds. Fancy colored diamonds come in blue, pink, green, orange, black and chocolate.