Shop our selection of 3 Carat Diamonds. ShivShambu brings to you a special collection of 3 carat diamonds at the most reasonable price in the market which is very beautiful and attractive to look at. Our store offers you a wide variety of Diamonds, Diamond rings, and other Diamond jewelry. The cost of a 3 carat diamond depends on its size, quality of cut, clarity, and color. To buy a 3 carat diamond, visit our online store.