Diamond Information

How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA

 

ONE

CUT
The cut of your diamond is probably the most important as it determines the level of sparkle, brilliance and fire and beauty in your gem.

 

Brilliant Round 
Princess
Oval
Marquise
Pear
Heart
Emerald
Radiant
Asscher
Cushion

 

TWO

CARAT
“carat” refers to a diamond’s weight, how big it is.

DIAMOND RELATIVE CARAT / SIZE COMPARISON

Carat is a measurement of weight, not size and so the overall diameter (mm) could differ slightly even though the carat weight is correct. Image is not to scale. Diamond pictures are shown for comparison purpose only. Actual size can vary depending on your screen resolution, monitor size, etc.

THREE

COLOUR 

D, E, F

Colourless

G, H, I, J

Near Colourless

K, L, M

Faint Yellowish White

N, O, P, Q, R

Very Light Yellow

S to Z

Light Yellow

 

Ideal Colour Grade – G – H grades with medium to no fluorescence are a perfect choice for those who prefer colourless stones but are constrained by their budget.

FOUR

CLARITY

Clarity grading is to measure the position, volume and colour of the inclusions.  FL or IF (flawless or internally flawless) diamonds have the best clarity and are the most expensive ones. Diamonds marked I (visible inclusions) are the poorest.

A diamond with no inclusions visible to the naked eye, VS1 or VS2 clarity is ideal However diamonds with SI1 or SI2 clarity are generally referred to as Eye-Clean Diamonds.