Professional Pear Shape Diamond Size Chart & Conversion Tool

Pear Cut Diamond Size Comparison Tool - CT to MM / MM to CT

In need of a quick and reliable method of finding out how much a 1 carat pear shaped diamond is in mm? Want to improve your own guides to finding the ideal proportions of a pear cut? This guide covers all that and more, including a wide range of sizes from small to large.

The Pear Shaped Diamond is one of the most beloved and popular diamond cuts in the world, and is a creation born from taking elements from both the classic brilliant round cut and the ever majestic marquise cut diamond into a unique and independent shape. The following size chart will aid you in quick and easily accessible conversions of the Pear Shape, into CT and MM / MM to CT.

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0.4 - 1.15 cts

PEAR SHAPE CARAT WEIGHT	LENGTH MM SIZE	WIDTH MM SIZE
0.04 - 0.07 ct.	3.30 - 3.70 mm.	2.00 - 2.40 mm.
0.08 - 0.12 ct.	3.60 - 4.20 mm.	2.40 - 2.80 mm.
0.13 - 0.17 ct.	4.10 - 4.80 mm.	2.90 - 3.20 mm.
0.18 - 0.22 ct.	4.70 - 5.20 mm.	3.10 - 3.30 mm.
0.23 - 0.28 ct.	5.10 - 5.80 mm.	3.40 - 2.70 mm.
0.30 - 0.37 ct.	5.70 - 6.10 mm.	3.60 - 4.00 mm.
0.40 - 0.48 ct.	6.10 - 6.60 mm.	3.90 - 4.40 mm.
0.50 - 0.59 ct.	6.50 - 7.30 mm.	4.30 - 4.60 mm.
0.60 - 0.67 ct.	6.80 - 7.40 mm.	4.60 - 4.80 mm.
0.70 - 0.78 ct.	7.30 - 8.00 mm.	4.80 - 5.00 mm.
0.80 - 0.88 ct.	8.00 - 8.40 mm.	5.10 - 5.30 mm.
0.90 - 0.98 ct.	8.20 - 8.50 mm.	5.30 - 5.50 mm.
1.00 -1.15 ct.	8.40 - 8.90 mm.	5.60 - 5.80 mm.

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1.10 - 5.25 cts

PEAR SHAPE CARAT WEIGHT	LENGTH MM SIZE	WIDTH MM SIZE
1.20 - 1.27 ct	9.00 - 9.50 mm.	5.90 - 6.00 mm.
1.30 - 1.45 ct	9.30 - 9.60 mm.	6.10 - 6.20 mm.
1.50 - 1.60 ct	9.70 - 10.20 mm.	6.30 - 6.50 mm.
1.65 - 1.80 ct	10.00 - 10.50 mm.	6.50 - 6.70 mm.
2.00 - 2.30 ct	10.70 - 11.50 mm.	7.00 - 7.30 mm.
2.40 - 2.60 ct	11.50 - 11.80 mm.	7.40 - 7.70 mm.
2.70 - 2.90 ct	11.70 - 12.30 mm.	7.70 - 7.80 mm.
3.00 - 3.30 ct	12.40 - 13.00 mm.	8.00 - 8.20 mm.
3.40 - 3.60 ct	12.70 - 13.40 mm.	8.30 - 8.50 mm.
3.70 -3.90 ct	13.30 - 13.70 mm.	8.50 - 8.70 mm.
4.00 - 4.20 ct	13.60 - 14.00 mm.	8.70 - 8.90 mm.
4.40 - 4.70 ct	14.00 - 14.30 mm.	9.00 - 9.20 mm.
5.00 - 5.25 ct	14.50 - 15.50 mm.	9.30 - 9.70 mm.

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What are the Ideal Proportions of a Pear Shape Diamond?

For the pear cut to truly brings out its potential, the best possible proportions are an immensely important factor which can’t be ignored. Much more than your average cut. Perhaps most important is avoiding the undesirable bow-tie effect which the pear shaped diamond tends to posses but ranges from being non visible, to dominant. Below are our go to guidelines that helps us differentiate the good from the bad (combined with visually looking at the stone of course).

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

Recommended Proportions Guide

	EXCELLENT	VERY GOOD	GOOD
Table - %	53% - 63%	52% - 64% or 64% - 65%	51% or 66% - 68%
Depth - %	58% - 62%	56% - 57.9% or 62.1% - 66%	53% - 55.9% or 66.1% - 71%
Girdle	Very Thin to -	Slightly Thick	Very Thin to Thick
Culet	None	Very Small	Small

What is the Ideal Pear Cut Diamond Length to Width Ratio?

The following table showcases the ideal length to width ratio of the Pear Shape .Generally speaking, it represents the most sought after pear cut symmetry. However, personal preference should always be taken into consideration, as well as the intended end result. If the customer will eventually need it for earrings for example, a narrower than your average pear diamond will be more desirable. If the end result is more likely needed to be incorporate in an engagement ring, the classic or slightly wider variation would prove best.

	EXCELLENT	VERY GOOD	GOOD
Length To Width Ratio	1.45 - 1.55	1.40 - 1.45 or 1.56 - 1.65	1.35 - 1.39 or 1.66 - 1.80