1.3 Carat Diamonds
1.30 carat diamonds represent an extremely popular size range from about 1.30ct to 1.39ct. Diamonds in this size range have visual impact similar to diamonds in the 1.50ct range, yet cost much less. When diamonds hit the one and a half carat mark the price per carat jumps significantly, making those diamonds much more expensive than diamonds in the 1.30 carat range. Well cut diamonds in this size, such as ideal cut diamonds, can actually have greater outer dimensions with better light performance than ordinary diamonds in larger weight categories.