Oval Cut Diamond Size Chart (MM)

TheOval cut diamondvaries in length-to-width ratios like the Emerald cut diamond. The chart below compiles average conversions for the millimeter measurements and carat weight of oval cut diamonds.

5x3 mm. 0.25 ct.
6x4 mm. 0.50 ct.
7x5 mm. 0.75 ct.
7.7x5.7 mm. 1.00 ct.
8x6 mm. 1.25 ct.
8.5x6.5 mm. 1.50 ct.
9x6.5 mm. 1.75 ct.
9x7 mm. 2.00 ct.
10x8 mm. 2.50 ct.
12x8 mm. 3.00 ct.
12x8.5 mm. 3.50 ct.
12.5x8.5 mm. 4.00 ct.
12.75x8.5 mm. 4.50 ct.
12x10 mm. 5.00 ct.

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