GUIDANCE DIAMOND SHAPES MARQUISE

marquise-stone-loop

DRAMATIC - MOVING - PLAYFUL

This shaped was developed to be presented to the beloved of King Louis XIV of France, a unique shape which resemble the lips of his lover, Marquise de Pompadour. Its curved, elongated shape features pointed ends, making it appear larger than cuts of the same carat weight. The marquise cut is a classic and historic diamond that resembles the delight of a smile. he marquise cut's elongated body can make its appearance larger than its actual carat weight. It is an excellent cut to show the impression of long, slender fingers.

Some Marquise shaped diamonds may have a bow-tie effect which occurs when light doesn’t bounce into the middle of the diamond because of the way the diamond is cut. While most agree that this is part of a Marquise diamond’s beauty, a severe effect is undesirable. Marquise diamonds can be set vertically or horizontally.

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A General Guidline For Evaluating The Cut Of a Marquise Diamond

diamond-marquise

MARQUISE

  EXCELLENT VERY GOOD GOOD FAIR POOR
TABLE % 53 - 63 52
or
64 - 65
51
or
66 - 68
50
or
69 - 70
<50 or >70
DEPTH % 58 - 62 56 - 57.9
or
62.1 - 66
53 - 55.9
or
66.1-71
50 - 52.9
or
71.1-74
<50
or
>74
GIRDLE VERY THIN
-
SLIGHTLY THICK
VERY THIN
-
SLIGHTLY THICK
VERY THIN
-
THICK
VERY THIN
-
VERY THICK
EX. THIN
-
EX. THICK
L/W RATIO
RECTANGLE
1.85 - 2.00 1.75 -1.84
or
2.01 - 2.15
1.65 -1.74
or
2.16 - 2.30
1.55 - 1.64
or
2.31 - 2.45
>1.55
or
<2.45

Marquise Diamond Guide

Please see the ideal table, depth and length to width ratio combinations for marquise cuts. An important consideration when selecting a marquise cut is the colour. Marquise tend to show colour more than round diamonds because they have less depth in the tips. When considering other factors, be sure that the diamond looks symmetrical. The two pointed ends should align with each other. If possible opt for a diamond with excellent or very good symmetry. In terms of clarity, avoid a diamond that has visible inclusions in the central portion.

Length To Width Ratio For Marquise Diamond

  • ratio-dimond-marquise_1

    1.75

  • ratio-dimond-marquise_2

    1.95

  • ratio-dimond-marquise_3

    2.15

Marquise Diamond Size Chart

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

dhapes-marquise-size-chart

Marquise Diamond Sizes & Carat Weight

MM SIZE CARAT WEIGHT MM SIZE CARAT WEIGHT
4.5x3.5 0.21 10x8 2.50
5x3 0.21 10.5x8.5 2.88
5.5x3.5 0.33 12x8 3.00
5x4 0.35 11x9 3.85
6x4 0.50 12x10 5.05
6x5 0.61 14x10 5.81
6.5x4.5 0.65 13x11 6.05
7x5 0.75 14x12 8.21
7.7x5.7 1.00 15x12 8.76
8x6 1.25 16x12 9.32
9x6 1.41 16x14 11.88
8.5x6.5 1.50 18x13 12.86
9x7 2.00 20x15 14.96

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