MM to Carat Weight Conversions

 
Asscher MM Size Asscher Carat Weight
5.0mm 0.75ctw
6.0mm 1.00ctw
7.0mm 1.90ctw
7.5mm 2.10ctw
8.0mm 2.25ctw
8.5mm 3.00ctw
9.0mm 3.10ctw
9.5mm 4.00ctw
10.0mm 5.00ctw
10.5mm 6.00ctw
Cushion Rose Cut MM Size Cushion Rose Cut Carat Weight
6.5mm 0.60ctw
7.0mm 0.85ctw
7.5mm 1.10ctw
8.0mm 1.40ctw
8.5mm 1.80ctw
9.0mm 2.00ctw
Emerald MM Size Emerald Carat Weight
7x5mm 1.00ctw
7.5x5mm 1.15ctw
8x5.5mm 1.35ctw
8x6mm 1.75ctw
8.5x6mm 1.80ctw
9x7mm 2.50ctw
9x6.5mm 2.20ctw
9.5x7mm 2.60ctw
10x7.5mm 3.10ctw
10x8mm 3.50ctw
10.5x8.5mm 3.90ctw
11x8mm 4.10ctw
11x9mm 4.90ctw
Marquise MM Size Marquise Carat Weight
8x4mm 0.50ctw
9x4.5mm 0.75ctw
10x5mm 1.00ctw
11x5.5mm 1.30ctw
12x6mm 1.60ctw
13x6.5mm 2.10ctw
14x7mm 2.90ctw
Oval MM Size Oval Carat Weight
5x3mm 0.30ctw
6x4mm 0.55ctw
7x5mm 0.90ctw
8x5.5mm 1.10ctw
8x6mm 1.40ctw
8.5x6mm 1.50ctw
9x6mm 1.80ctw
9x6.5mm 1.90ctw
9x7mm 2.00ctw
9.5x7mm 2.20ctw
10x7mm 2.30ctw
10x7.5mm 2.60ctw
10x8mm 3.00ctw
10.5x8mm 3.10ctw
11x8.5mm 3.60ctw
11x9mm 3.75ctw
11.5x9mm 4.30ctw
12x10mm 5.20ctw
Pear MM Size Pear Carat Weight
8x5mm 1.00ctw
9x6mm 1.50ctw
10x7mm 2.10ctw
11x7.5mm 2.70ctw
12x8mm 3.20ctw
13x9mm 4.70ctw
14x9.5mm 5.60ctw
15x10mm 6.60ctw
Princess MM Size Princess Carat Weight
6x6mm 1.20ctw
6.5x6.5mm 1.50ctw
7x7mm 1.90ctw
7.5x7.5mm 2.25ctw
8x8mm 2.80ctw
Radiant MM Size Radiant Carat Weight
7x5mm 1.20ctw
7.5x5mm 1.30ctw
8x5.5mm 1.40ctw
8x6mm 1.80ctw
8.5x6mm 1.90ctw
9x7mm 2.75ctw
9x6.5mm 2.40ctw
9.5x7mm 2.90ctw
10x7.5mm 3.10ctw
10x8mm 3.90ctw
10.5x8.5mm 4.20ctw
11x8mm 4.80ctw
11x9mm 5.25ctw
Round Hearts & Arrows Cut MM Size Round Hearts & Arrows Cut Carat Weight
4.0mm 0.25ctw
4.5mm 0.33ctw
5.0mm 0.50ctw
5.5mm 0.65ctw
6.0mm 0.80ctw
6.5mm 1.00ctw
7.0mm 1.20ctw
7.5mm 1.50ctw
8.0mm 1.90ctw
8.25mm 2.00ctw
8.5mm 2.20ctw
9.0mm 2.75ctw
9.5mm 3.25ctw
10.0mm 3.60ctw
10.5mm 4.20ctw
11.0mm 4.90ctw
11.5mm 5.60ctw
12.0mm 6.25ctw
12.5mm 7.00ctw
13.0mm 8.00ctw
14.0mm 9.00ctw
Round Old European Cut MM Size Round Old European Cut Carat Weight
5.0mm 0.50ctw
5.5mm 0.60ctw
6.0mm 0.80ctw
6.5mm 1.00ctw
7.0mm 1.25ctw
7.5mm 1.60ctw
8.0mm 1.90ctw
8.5mm 2.40ctw
9.0mm 2.90ctw
9.5mm 3.50ctw
10mm 3.90ctw
Round Rose Cut MM Size Round Rose Cut Carat Weight
3.0mm 0.10ctw
4.0mm 0.20ctw
5.0mm 0.30ctw
5.5mm 0.35ctw
6.0mm 0.40ctw
6.5mm 0.60ctw
7.0mm 0.85ctw
7.5mm 1.10ctw
8.0mm 1.40ctw
8.5mm 1.80ctw
9mm 2.00ctw
9.5mm 2.30ctw
10.0mm 2.60ctw
10.5mm 3.00ctw
11.0mm 3.50ctw