The great majority of diamonds are classified in the category known as “cape”, which varies from the perfectly colourless (white) to a slight yellow tint.

D	Exceptional White +	formerly known as "Jager"
E	Exceptional White	form. "River"
F	Extra White +
G	Extra White	form. "Top Wesselton"
For these colours demand a recognised certificate testifying the quality of these rare whites.
H	White	form. "Wesselton"
I	Slightly tinted white	form. "Top Crystal"
These are very beautiful whites (called “near colourless”), above the “commercial” quality. A certificate is always recommended.
J	Slightly tinted white	form. "Crystal"
K/L	Tinted	form. "Top Cape"
These colour diamonds still seem white to the naked eye for non professionals if they are of a small size (below 0,10 ct) but beyond this, a colour saturation is noticeable.
M	And below: tinted, very pale yellow	"light cape, cape, dark cape"

Fancy colour: (naturally) coloured diamonds. Rare. We occasionally have some in the catalogue (“special” colours).

Fluorescence : fluorescence is a luminous effect that happens with certain diamonds when they are exposed to ultraviolet rays: they emit a slight blue light.
Since the presence of UV rays in natural light is feeble and it is generally absent from artificial light, fluorescence is neutral. Only diamonds with a very strong fluorescence can sometimes have a milky aspect.

For more information about diamonds please contact-us.