The size of a 5 carat diamond varies depending on its shape. For example, a round 5 carat diamond, cut to ideal proportions, measures about 11.00 mm in diameter and has a depth of 6.70 mm. Other diamond shapes may have different dimensions, offering a larger or smaller surface area. 5 carat princess cut diamonds measure about 9.50 mm x 9.50 mm x 6.80 mm, while emerald cut diamonds have dimensions of 11.50 mm x 8.50 mm x 5.50 mm. Asscher, radiant, cushion, oval, pear-shaped, heart-shaped, marquise, and trillion cuts also have specific dimensions for a 5 carat diamond, offering a variety of choices depending on aesthetic preferences.