Professional Asscher Cut Diamond Size Chart

Asscher Shaped Diamond Size Comparison From CT to MM and Vice Versa
Asscher Cut Diamond CT to MM / MM to CT Conversion Chart
0.04 - 5.25 cts
ASSCHER CUT CARAT WEIGHT ASSCHER CUT MM SIZE
0.04 - 0.05 ct.1.90 - 2.00 mm.
0.05 - 0.06 ct.2.10 - 2.20 mm.
0.07 - 0.08 ct.2.30 - 2.40 mm.
0.09 - 0.11 ct.2.50 - 2.60 mm.
0.12 - 0.13 ct.2.70 - 2.80 mm.
0.14 - 0.17 ct.2.90 - 3.10 mm.
0.18 - 0.21 ct.3.20 - 3.30 mm.
0.22 - 0.24 ct.3.30 - 3.40 mm.
0.25 - 0.28 ct.3.50 - 3.70 mm.
0.30 - 0.35 ct.3.70 - 3.90 mm.
0.35 - 0.40 ct.3.90 - 4.00 mm.
0.40 - 0.45 ct.4.10 - 4.20 mm.
0.45 - 0.50 ct.4.30 - 4.40 mm.
0.55 - 0.60 ct.4.50 - 4.60 mm.
0.60 - 0.65 ct.4.70 - 4.80 mm.
0.70 - 0.75 ct.4.90 - 5.20 mm.
0.80 - 0.89 ct.5.20 - 5.30 mm.
0.90 - 0.98 ct.5.30 - 5.40 mm.
1.00 - 1.15 ct5.50 - 5.60 mm.
1.20 - 1.27 ct5.70 - 6.20 mm.
1.30 - 1.45 ct6.10 - 6.50 mm.
1.50 - 1.60 ct6.20 - 6.60 mm.
1.65 - 1.80 ct6.50 - 7.00 mm.
2.00 - 2.30 ct6.90 - 7.50 mm.
2.40 - 2.60 ct7.40 - 7.90 mm.
2.70 - 2.90 ct7.50 - 8.20 mm.
3.00 - 3.30 ct7.80 - 8.50 mm.
3.40 - 3.60 ct8.30 - 8.70 mm.
3.70 - 3.90 ct8.50 - 8.90 mm.
4.00 - 4.20 ct8.70 - 9.20 mm.
4.40 - 4.70 ct9.10 - 9.70 mm.
5.00 - 5.25 ct9.20 - 10.00 mm.
NGD Diamonds – Contact us for any specific size requirement

Ideal Proportions for Asscher Cut Diamonds

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

What is the Recommended Length to Width Ratio of an Asscher Cut Diamond?

Category Length to Width Ratio
Excellent 1.00 to 1.03
Very Good 1.04 - 1.05