How much is 1 carat of diamonds worth?

One carat of diamonds is worth whatever someone will pay you for it.

The value of one carat of diamonds depends on the clarity, colour, cut and the carat size of the diamonds. The smaller the diamonds the less individual stones will be worth. A diamond weighing 1.00 ct will be worth more that 30 diamonds weighing 1.00 ct in total.

Best practices dictate that you pay a certified gemologist to evaluate your diamonds and help you determine a fair market value for them.

Next as what a car is worth. There is no simple answer for that question either. Quality is the key when making a valuation of either a diamond or a car. For the car the price can vary by the brand and what features are in the car. For a diamond there are features like color, the cut and proportions, the clarity which are the size and placement of markings inside the stone, and of course how much it weighs.

If all quality is equal, a single well cut good quality one carat diamond will be close to half the price of a diamond of similar cut, color and clarity that weighs about 1.25 carats. You can almost expect the value to double for each 1/4 carat of bigger size.