GUIDANCE DIAMOND SHAPES PRINCESS

dshape-princess-dimond

ANGELIC - TRENDY - BEAUTIFUL

The Princess cut Diamond is the second most popular diamond. These diamonds are basically square shaped stones. This shape was first developed in 1960. A square cut diamond that has refractive properties almost the same as the Round Brilliant shape. The princess cut diamonds seems to be larger than the round cut diamonds because of a larger table dimensions. Typically these are in the shape of a perfect square but can also be found in a slightly rectangular shape.


The princess cut diamond has impressive fire and brilliance, maximising sparkle. When purchasing a princess diamond, pay special attention to the length to width ratio, especially if your desire a diamond that is a perfect square. Its clean lines and angles make it a modern, elegant option.

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Princess Diamond Guide

Princess cuts can be either square or rectangular. The ideal ratio, from length to width, of a square princess cut is 1.00 to 1.04. The ideal ratio of a rectangular princess cut is 1.07 to 1.15. Below are the proportion ranges for princess cut diamonds and their respective cut grades. A rule to follow when choosing a princess cut diamond is to avoid those with a table percentage that is greater than the depth percentage.

A General Guideline For Evaluating The
Cut Of A Princess Diamond

diamond-shapes-princess

Princess

  EXCELLENT VERY GOOD GOOD FAIR POOR
TABLE % 62-72 59-66
or
73-75
56-58
or
76-82
53-55
or
83-85
<53
or
>85
DEPTH % 64-75 64-75 58-63.9
or
75.1-80
56-57.9
or
80.1-84
<56
or
>84
GIRDLE VERY THIN
-
SLIGHTLY THICK
VERY THIN
-
SLIGHTLY THICK
VERY THIN
-
THICK
VERY THIN
-
VERY THICK
EX. THIN
-
EX. THICK
L/W RATIO 1.00-1.03 1.00-1.03 1.04-1.05 1.06-1.08 >1.08

Length To Width Ratio For Princess Diamonds

  • ratio-dimond-princess-1

    1.00

  • ratio-dimond-princess-2

    1.05

  • ratio-dimond-princess-3

    1.10

Princess Diamond Size Chart

Princess cut diamonds have approximate millimetre sizes that correspond to certain carat weights.

princess-size-chart

Round Diamond Sizes & Carat Weight

MM SIZE CARAT WEIGHT
1.75 mm 0.015
2 mm 0.03
2.25 mm 0.06
2.5 mm 0.08
2.75 mm 0.10
3 mm 0.13
3.25 mm 0.18
3.5 mm 0.26
3.75 mm 0.29
4 mm 0.31
4.25 mm 0.39
4.5 mm 0.44
4.75 mm 0.50
5 mm 0.64
5.25 mm 0.75
5.5 mm 0.75
5.75 mm 1.00
6 mm 1.11
6.25 mm 1.25
6.5 mm 1.39
6.75 mm 1.50
7 mm 1.75
1.5 mm 2.00
 

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