Pear Shape Tolerances

Approximate MM
MM Range
Average Wgt
4X2.5
3.8-4.2 X 2.3-2.7
.10-.12 ct
4X3
3.8-4.2 X 2.8-3.2
.13-.14 ct
4.5X3
4.3-4.7 X 2.8-3.2
.15-.17 ct
5X3
4.8-5.2 X 2.8-3.2
.18-.23 ct
5.5X3.5
5.3-5.7 X 3.3-3.7
.24-.29 ct
6X4
5.7-6.3 X 3.8-4.3
.30-.38 ct
Pear Shape Tolerances

Marquise Tolerances

Approximate MM
MM Range
Average Wgt
2.5X1.25
2.3-2.7 X 1.16-1.35
.015-.02 ct
2.5X1.75
2.3-2.7 X 1.65-1.89
.02-.04 ct
3X1.5
2.8-3.2 X 1.3-1.65
.025-.04 ct
3.5X1.75
3.3-3.65 X 1.65-1.88
.05-.06 ct
3.5X2
3.3-3.65 X 1.89-2.2
.06-.07 ct
3.75X1.75
3.68-3.88 X 1.65-1.88
.05-.06 ct
4X2
3.89-4.18 X 1.89-2.18
.07-.09 ct
4.25X2.25
4.2-4.35 X 2.2-2.35
.09-.11 ct
4.5X2.5
4.4-4.7 X 2.4-2.7
.11-.13 ct
5X2.5
4.8-5.3 X 2.3-2.8
.14-.17 ct
5X3
4.8-5.3 X 2.8-3.2
.18-.22 ct
6X3
5.8-6.3 X 2.8-3.3
.23-.28 ct
6X3.5
5.8-6.5 X 3.3-3.8
.29-.36 ct
Marquise

Heart Shape Tolerances

Approximate MM
MM Range
Average Wgt
3X3
2.8-3.2
.11-.17 ct
3.5X3.5
3.3-3.7
.18-.22 ct
4X4
3.8-4.2
.23-.28 ct
4.5X4.5
4.3-4.7
.29-.36 ct
Heart

Oval Tolerances

Approximate MM
MM Range
Average Wgt
4X3
3.7-4.2 X 2.7-3.2
.15-.17 ct
4.5X3.5
4.3-4.8 X 3.3-3.7
.18-.22 ct
5X3
4.8-5.2 X 2.7-3.5
.23-.28 ct
5X4
4.7-5.2 X 3.7-4.2
.29-.36 ct
6X4
5.5-6.3 X 3.7-4.2
.37-.44 ct
Oval