Explore our online store for 5 Carat Diamonds. A 5 carat diamond weighs approximately 1000 mg (Milligrams). 5 Carat Diamonds are widely preferred for engagement rings and other jewelry. The price of a 5-carat diamond depends on its weight as well as other factors like cut, color, clarity, symmetry, and polish. Visit our online store for 5-carat diamonds and diamond jewelry.