marquistecutdiamondcttomm

Professional Marquise Diamond Size Chart

CT to MM / MM to CT Marquise Shaped Diamond Size Comparison Chart

The Marquise Cut Diamond is the epitome of elegance and breaking away from convention in a visually stunning way. One of the many perks that the Marquise shape offers is appearing larger than its total weight would indicate. We however, would like to focus more on finding its accurate weight conversion from ct to mm and mm to ct, and that’s more than likely what you’re here for as well. 

When dealing with the Marquise Shaped Diamond you have to take into account both its unique length and width dimensions for achieving the most accurate ct to mm / mm to ct conversion. The following chart will help you achieve a successful conversion of the Marquise Cut Diamond From CT To MM / MM to CT, including sizes as small as 0.04 ct and up to 5.25 ct. 

The good news is that everything is pre-solved for your convenience and even faster than a calculator. For example: 

You have a 0.90 ct Marquise Piece and would like to know its weight in mm? a quick scroll would reveal that it is approximately 9.30 Length Size in MM and 4.70 Width Size in MM. . 

 

Marquise Cut Diamond CT to MM / MM CT Conversion Shart

0.04 - 1.10 cts

Copyright © AVA DIAMONDS

MARQUISE CUT CARAT WEIGHTMARQUISE CUT LENGTH MM SIZEMARQUISE CUT WIDTH MM SIZE
0.04 - 0.07 ct. 3.80 - 4.30 mm. 1.80 - 2.10 mm.
0.08 - 0.12 ct. 4.20 - 4.90 mm. 2.20 - 2.60 mm.
0.13 - 0.17 ct. 4.90 - 5.70 mm. 2.50 - 2.90 mm.
0.18 - 0.22 ct. 5.60 - 6.30 mm.2.90 - 3.30 mm.
0.23 - 0.28 ct.6.00 - 6.70 mm. 3.10 - 3.40 mm.
0.30 - 0.37 ct. 6.50 - 7.20 mm. 3.40 - 3.70 mm.
0.40 - 0.48 ct. 7.10 - 7.80 mm.3.70 - 4.20 mm.
0.50 - 0.59 ct. 7.50 - 8.50 mm. 4.00 - 4.30 mm.
0.60 - 0.67 ct.8.50 - 8.90 mm.4.20 - 4.50 mm.
0.70 - 0.78 ct. 8.80 - 9.30 mm.4.40 - 4.70 mm.
0.80 - 0.88 ct.9.30 - 9.80 mm.4.70 - 4.80 mm.
0.90 - 0.98 ct.9.30 - 10.00 mm.4.80 - 5.10 mm.
1.00 -1.10 ct.9.80 - 11.00 mm.5.00 - 5.30 mm.

Ava Diamonds

1.20 - 5.25 cts

Copyright © AVA DIAMONDS

MARQUISE CUT CARAT WEIGHTMARQUISE CUT LENGTH MM SIZEMARQUISE CUT WIDTH MM SIZE
1.20 - 1.27 ct10.60 - 11.50 mm. 5.30 - 5.50 mm.
1.30 - 1.45 ct11.30 - 12.00 mm. 5.60 - 5.70 mm.
1.50 - 1.60 ct11.80 - 12.20 mm. 5.80 - 6.00 mm.
1.65 - 1.80 ct12.30 - 12.50 mm.6.00 - 6.20 mm.
2.00 - 2.30 ct12.60 - 13.50 mm. 6.30 - 6.50 mm.
2.40 - 2.60 ct13.60 - 14.40 mm. 6.60 - 7.00 mm.
2.70 - 2.90 ct14.40 - 14.80 mm.7.00 - 7.40 mm.
3.00 - 3.30 ct14.60 - 15.30 mm. 7.50 - 7.70 mm.
3.40 - 3.60 ct15.50 - 16.10 mm.7.70 - 7.90 mm.
3.70 -3.90 ct16.20 - 16.40 mm.8.00 - 8.20 mm.
4.00 - 4.20 ct16.40 - 16.80 mm.8.20 - 8.40 mm.
4.40 - 4.70 ct16.70 - 17.30 mm.8.30 - 8.50 mm.
5.00 - 5.25 ct17.40- 17.80 mm.8.60 - 9.20 mm.

Ava Diamonds

What are the Ideal Proportions of a Marquise Cut?

Marquise Cut Diamond Size Chart1

When it comes to the Marquise Shaped Diamond, finding the ideal, or recommended proportions is more than possible, but personal taste and the intended use for the piece are also a factor worth considering. Some prefer their Marquise Shapes Wider, or Thinner than Average. The most popular proportions are a nice balance of both, which does help the creation of guidelines to help you along. 

marquisecutdiamondcttomm2

What is the Ideal Diamond Depth and Table for the Marquise Cut?

EXCELLENTVERY GOODGOOD

Table - %

61% - 69%

57% - 60%

or

70% - 72%

54% - 56%

or

73% - 74%

Depth - %

61% - 67%

59% - 60.9%

or

67.1% - 70%

57% - 58.9%

or

70.1% - 74%

Girdle

Very Thin to - 

Slightly Thick

Very Thin

to

Thick

Culet

NoneVery SmallSmall

What is the recommended Length to Width Ratio of Marquise Cut Diamond?

The Length to Width ratio of the Marquise Shape is a highly valuable piece of information that indicates how plump or thick the piece is, or how thin its overall appearance will be. Generally speaking, you want the length to width ratio to be close to the 2.00 range. To simplify it, more often than not you want the length to be close to double its width. The lower the ratio, the more thick your Marquise will look, and the longer the ratio extends beyond its sweet spot the thinner it will appear. 

 

EXCELLENTVERY GOODGOOD
Length To Width Ratio1.85 - 2.00

1.75 - 1.84 

or

2.01 - 2.15

1.65 - 1.74 

or

2.16 - 2.30

What are the Best Settings for the Marquise Shaped Diamond?

The unique shape of the Marquise does present some worthwhile considerations. Any shape with pointed edges, when set incorrectly can be chipped and damaged quite severely. One of the best methods of dealing with its pointed edges is setting it in a V Shaped Prong which both shelters its pointed edges while maintaining a beautiful display that doesn’t take away from the shape’s natural appeal. 

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