DIMOND SIZE CHART

Oval Diamond Size Chart

Want to know the actual size of a 1 carat diamond on a hand? Use our diamond size chart to understand the millimeter (mm) size of each diamond shape.

MM Size Carat Weight
5×3 mm.
0.25 ct.
6×4 mm.
0.50 ct.
7×5 mm.
0.75 ct.
7.7×5.7 mm.
1.00 ct.
8×6 mm.
1.25 ct.
8.5×6.5 mm.
1.50 ct.
9×6.5 mm.
1.75 ct.
9×7 mm.
2.00 ct.
10×8 mm.
2.50 ct.
12×8 mm.
3.00 ct.
12×8.5 mm.
3.50 ct.
12.5×8.5 mm.
4.00 ct.
12.75×8.5 mm.
4.50 ct.
12×10 mm.
5.00 ct.
MM Size Carat Weight
3.6×2.7 mm.
0.10 ct.
4×3 mm.
0.15 ct.
4.5×3.5 mm.
0.20 ct.
5×3 mm.
0.25 ct.
5.5×3.5 mm.
0.33 ct.
5×4 mm.
0.35 ct.
6×4 mm.
0.50 ct.
6×5 mm.
0.61 ct.
6.5×4.5 mm.
0.65 ct.
7×5 mm.
0.75 ct.
7.7×5.7 mm.
1.00 ct.
8×6 mm.
1.25 ct.
9×6 mm.
1.41 ct.
8.5×6.5 mm.
1.50 ct.
9×6.5 mm.
1.75 ct.
9×7 mm.
2.00 ct.
MM Size Carat Weight
10×8 mm.
2.50 ct.
10.5×8.5 mm.
2.88 ct.
12×8 mm.
3.00 ct.
12×8.5 mm.
3.50 ct.
11×9 mm.
3.85 ct.
12.5×8.5 mm.
4.00 ct.
12.75×8.5 mm.
4.50 ct.
12×10 mm.
5.00 ct.
14×10 mm.
5.81 ct.
13×11 mm.
6.05 ct.
14×12 mm.
8.21 ct.
15×12 mm.
8.76 ct.
16×12 mm.
9.32 ct.
16×14 mm.
11.88 ct.
18×13 mm.
12.86 ct.
20×15 mm.
14.96 ct.
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Ring Size Chart

Use our Ring Size Conversion Chart below to find your ring size in different countries.

Ring Diameter (MM) Usa/Canada Size
14.0 mm
3
14.4 mm
3.5
14.8 mm
4
15.2 mm
4.5
15.6 mm
5
16.0 mm
5.5
16.5 mm
6
16.9 mm
6.5
17.3 mm
7
17.7 mm
7.5
18.2 mm
8
18.6 mm
8.5
19.0 mm
9
19.4 mm
9.5
19.8 mm
10
20.2 mm
10.5
20.6 mm
11