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Table of Equivalence

Gems Asscher Cushion Emerald Heart MarquiseOval Pear Princess Round Radiant

Gemstones

For colored gemstones, dimensions are the best way of accurately measuring size. These dimensions are accurate plus or minus 0.2mm and gemstone weights are approximate (for reference only). Select the gemstone shape for carat weight equivalence. You may also view more details about your gems in the product details tab in each product page.

Asscher Cut

mm / carat Diamond Moissanite
5x5 0.80 0.70
6x6 1.30 1.20
7x7 2.10 2.00
8x8 3.10 2.50
9x9 3.10 2.80
10x10 6.10 5.50

Cushion Cut

LONG Diamond Moissanite Morganite
7x5 1.00 0.90 0.70
8x6 1.60 1.40 1.10
9x7 2.40 2.20 2.10
10x8 3.50 3.20 2.80
11x9 5.00 4.50 3.10
12x10 6.70 6.10 4.60
SQUARE Diamond Moissanite Morganite
5x5 0.60 0.50 0.50
6X6 1.10 0.90 0.90
7X7 1.70 1.40 1.30
8X8 2.40 2.10 1.90
9X9 3.30 2.90 2.60
10X10 5.00 4.10 3.50

Emerald Cut

mm / carat Diamond Moissanite Morganite
7x5 1.00 0.90 1.00
8x6 1.70 1.60 1.40
9x7 2.50 2.30 2.20
10x8 3.50 3.20 3.10
11x9 5.00 4.50 3.70
12x10 6.70 6.00

Heart Cut

mm / carat Diamond Moissanite Morganite
5x5 0.50 0.40 0.40
6x6 0.80 0.70 0.60
7x7 1.20 1.10 1.00
8x8 1.80 1.60 1.50

Marquise Cut

mm / carat Diamond Moissanite
8x4 0.50 0.40
9x4½ 0.70 0.60
10x5 1.00 0.90

Oval Cut

mm / carat Diamond Moissanite Morganite
7x5 0.90 0.80 0.70
8x6 1.50 1.30 1.10
9x7 2.10 1.90 1.60
10x8 3.00 2.70 2.30
11x9 4.20 3.70 3.20
12x10 5.80 5.10 4.10

Pear Cut

mm / carat Diamond Moissanite Morganite
8x5 0.90 0.80 0.80
9x6 1.50 1.30 1.00
10x7 2.10 1.90 1.60
12x8 3.50 3.00 3.00

Round Cut

mm / carat Diamond Moissanite Morganite
5 0.50 0.40 0.40
0.60 0.50
6 0.80 0.60 0.70
1.00 0.80
7 1.20 1.10 1.10
1.50 1.30
8 1.90 1.60 1.80
2.20 1.90
9 2.70 2.20 2.50
3.10 2.70
10 3.60 3.00 3.40
10½ 4.20 3.50
11 4.75 4.10

Radiant Cut

mm / carat Diamond Moissanite
7x5 1.20 1.00
8x6 1.80 1.60
9x7 2.90 2.70
10x8 3.90 3.50
11x9 5.30 4.70
12x10 7.20 6.40

Princess Cut

mm / carat Diamond Moissanite
6x6 1.30 1.10
7x7 2.10 1.80
8x8 3.10 2.70

 

Other sizes may be available now, contact us if you don't see the size you'd like.