Princess Cut Diamond Size Chart (MM)

Explore carat-to-size conversions for princess cut diamonds in millimeters, so you can visualize how each size will look on your hand.

Princess Cut Diamond Sizes

Princess MM Size	Princess Carat Weight
1.5 mm.	0.015 ct.
1.75 mm.	0.03 ct.
2 mm.	0.06 ct.
2.25 mm.	0.08 ct.
2.5 mm.	0.10 ct.
2.75 mm.	0.13 ct.
3 mm.	0.18 ct.
3.25 mm.	0.26 ct.
3.5 mm.	0.29 ct.
3.75 mm.	0.31 ct.
4 mm.	0.39 ct.
4.25 mm.	0.44 ct.
4.5 mm.	0.50 ct.
4.75 mm.	0.64 ct.
5 mm.	0.75 ct.
5.25 mm.	0.90 ct.
5.5 mm.	1.00 ct.
5.75 mm.	1.11 ct.
6 mm.	1.25 ct.
6.25 mm.	1.39 ct.

Princess MM Size	Princess Carat Weight
6.5 mm.	1.50 ct.
6.75 mm.	1.75 ct.
7 mm.	2.00 ct.
7.25 mm.	2.01 ct.
7.5 mm.	2.50 ct.
7.75 mm.	2.74 ct.
8 mm.	3.00 ct.
8.25 mm.	3.24 ct.
8.5 mm.	3.67 ct.
8.75 mm.	4.10 ct.
9 mm.	4.12 ct.
9.5 mm.	5.09 ct.
9.75 mm.	5.36 ct.
10 mm.	5.62 ct.
10.25 mm.	5.76 ct.
10.5 mm.	5.99 ct.
11 mm.	7.44 ct.
11.5 mm.	9.44 ct.
12 mm.	9.52 ct.

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