Four C's: Cut, Colour, Clarity and Carat
Every quality diamond of a carat or more
is one of nature's rarest and most exquisite phenomena. Each
is a visible reflection of you. Unique in all the world, possessing
four vital qualities that set it apart forever. They are called
the 4C's: Cut, Colour, Clarity and Carat (weight).
It is the 4C characteristics that determine the value of a diamond--and
to an astonishing degree the beauty and value of your jewelry.
We are experts where diamonds are concerned. We can help you
make the acquisition of a quality diamond.
Cut: Many Gemologists
consider cut to be the most important of the 4C's (Carat, Clarity,
Colour and Cut). If a diamond is not cut to good proportions,
reflected light will be lost through the side or bottom resulting
in a dull and less brilliant appearance. When a diamond is cut
from good to ideal proportions, light will reflect within the
diamond crystal and disperse through the top resulting in a
display of brilliance and fire. We recommends diamonds that
have a good or very good cut as the best value.
Diamonds are graded by colour using a letter from
D to Z. D, E and F are colourless; very rare and more expensive.
G, H, I and J are nearly colourless, but a trained jeweler can
detect a barely perceptible tint of colour. At Davidson Designs
we can help demonstrate these minor variations by showing you
different colour diamonds side by side. We recommend a colour
grade of I or higher. The near-colourless range of G -I represents
proportions that result in nearly all light reflecting through
the top of the diamond.
perfect proportions that reflects almost as much light as
an idea cut, but at a better value.
proportions that reflect most light, but still a good value.
proportions but some light will be lost through the bottom
and side resulting in less brilliance.
proportions resulting in a dull lifeless diamond.
Virtually all diamonds contain inclusions, yet
many are invisible to the unaided eye. These microscopic features
may look like clouds, feathers, black or white specks, or fine
lines when viewed with the aid of a 10X jeweler's loupe or microscope.
The larger the inclusions or number of inclusions; the lower
the grade and value of the diamond. The finest clarity grade
is flawless (FL) and internally flawless (IF) and goes down
to heavily included (I3). All diamonds ranging from flawless
(FL) to slightly included (SI2) have inclusions that can only
be viewed under 10X magnification. We recommend a clarity grade
of SI2 or higher with no inclusions visible by the unaided eye.
trained graders using 10X magnification and proper lighting.
no blemishes or inclusions.
flawless, no inclusions and only insignificant blemishes.
very slightly included, minute inclusions that are difficult
slightly included, minor inclusions ranging from difficult
to somewhat easy to see.
included, noticeable inclusions that are easy (SI1) or very
easy (SI2) to see.
I2, & I3
obvious inclusions that usually are eye-visible face up;
in I3, distinctions are based on the combined effect on
durability, transparency, and brilliance.
is the measurement of a diamonds size. 1 carat is equal to 100
points. A .50 carat diamond is the same as a 1/2 carat or a
50 point diamond. Diamond rarity and therefore price increases
with the size of the diamond. A 1 carat diamond is always worth
more than two .50 carat diamonds of the same quality.