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Diamond
Value is Like a Math Equation
Color +
Clarity +Cut + Carat = Diamond Value
The value of a diamond is
determined by four factors: color, clarity, cut and carat weight. The size alone
has little bearing on a stones value, for a one-carat diamond can be worth well
under $1,000 to well over $10,000. All four factors are extremely important when
determining the value of a stone. Because the value of a diamond is beyond what
the untrained eye can determine, it is important you rely on a gemologist you
trust.
Diamond Clarity
Most diamonds have minute
inclusions which make every stone unique. Flawless diamonds which are free of
any inclusions and surface blemishes are extremely rare. With the exception of
the imperfect grades, the clarity rarely mars the beauty or endangers the
durability of the stone.
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Flawless |
Internally
Flawless |
VVS1 |
VVS2 |
VS1 |
VS2 |
SI1 |
SI2 |
SI3 |
I1 |
I2 |
I3 |
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Inclusions cannot be seen
without 10X magnification; Appears flawless to the eye |
May have small, visible inclusions |
Imperfect; Noticeable inclusions |
Diamond Color
The ideal diamond
color should be like a drop of pure spring water. However most diamonds do have
a faint tint of yellow or brown color. The grading scale begins at D with a
colorless stone and proceeds through the alphabet as a greater tint of yellow or
brown is present.
|
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
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colorless
|
near colorless |
faint yellow |
very light yellow |
light yellow |
Cut
The sparkle in a diamond is the result of good cutting and correct
proportions. Motivated by the desire to retain the maximum weight from the rough and to
lower costs, most cutters do not cut and finish stones to achieve maximum
brilliance.
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0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
ideal |
fine |
good |
fair |
poor |
Carat
Diamonds and other
gemstones are sold by carats weight. It takes five carats to equal one gram. The
carat is then divided into 100 equal parts called points. Therefore, a 50-point
stone (.50 ct.) is a half carat, and a 10 pointer(.10 ct.) is a tenth carat.
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