Colour
A diamond’s absence of tint colour is graded on a scale from D (Colourless) to Z (Tinted colour). Colourless diamonds (D - F) will reflect more natural light colour and are considered more valuable.
International grading
D
Exceptional White +
E
Exceptional White
F
Rare White +
G
Rare White
H
White
I
Slightly Tinted White
J
Slightly Tinted White
K
Tinted White
L
Tinted White
M
Tinted Colour
N
Tinted Colour
Z
Tinted Colour
Clarity
Diamonds can contain external or internal imperfections known as blemishes and inclusions. Clarity is evaluated on the degree of which these imperfections are visible. Diamond imperfections are often difficult to see with the naked eye, however significant imperfections may affect brilliance.
International grading
Loupe-clean/ IF
VVS1
VVS2
VS1
VS2
SI1
SI2
P1/I1
P1/I2
P3/I3
Cut
The cut grade is considered the most important factor of a diamond’s beauty and brilliance. A diamond’s cut will affect how it handles light as it reflects and refracts to the eye. The diamond shape comes down to preference.
Common diamond shapes
Round
Princess
Oval
Marquise
Heart
Emerald
Pear
Asscher
Cushion
Trillion
Baguette
Radiant
How the diamond handles light
Carat weight
The international unit of weight measurement used for diamonds.
Size indication chart
0.25 CARAT 4.1mm
0.50 CARAT 5.2mm
0.75 CARAT 5.9mm
1.00 CARAT 6.5mm
1.25 CARAT 7.0mm
1.50 CARAT 7.4mm
1.75 CARAT 7.8mm
2.00 CARAT 8.2mm
2.25 CARAT 8.5mm
2.50 CARAT 8.8mm
