In 1960, the average price for one-carat diamond was around $2,500. Since then, the diamond price has increased to around $30,000 in 2015 . If the price for one-carat diamond continues rising at the same annual rate at which it's been increasing between 1960 and 2015 , then the price in 2066 wil be dollars. Increase decimal places for any intermediate calculations, from the default 2 to 6 or higher. Only round your final answer to TWO decimal places: for example, 10,000.23. Do NOT use "\$" in your