The common cost of a 1.90-carat diamond can vary considerably, relying on various factors along with the diamond's size, color, readability, and usual pleasant., the rate variety for a 1.90 carat diamond can be huge, spanning from several thousand greenbacks to updated tens of heaps of dollars. better-great diamonds with outstanding reduce, coloration, and clarity grades will normally command a better charge. moreover, marketplace situations, jewelry pricing policies, and other monetary factors can have an impact on the price. To get an correct and estimate, it is encouraged up to date talk over with professional jewelers or use on-line assets that are based on modern marketplace developments.