Professional Pear Shape Diamond Size Chart & Conversion Tool

Pear Cut Diamond Size Comparison Tool - CT to MM / MM to CT
0.4 - 5.25 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.
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.
NGD Diamonds – Contact us for any specific size requirement

Ideal Proportions for Pear Cut Diamonds

ParameterExcellentVery GoodGood
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%
GirdleVery Thin to Slightly ThickVery Thin to ThickVery Thin to Thick
CuletNoneVery SmallSmall

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

Category Length to Width Ratio
Excellent 1.45 - 1.55
Very Good 1.40 - 1.45 or 1.56 - 1.65
Good 1.35 - 1.39 or 1.66 - 1.80