The value of a .75 carat diamond can range broadly primarily based on elements which include cut, readability, colour, and shape. On average, a .75 carat diamond can value anywhere from $1,000 to $10,000 or greater, relying on the great and precise characteristics of the diamond. The price of a diamond also depends available on the market demand and supply, in addition to any certifications and grading reviews the diamond may also have acquired from corporations inclusive of the Gemological Institute of the usa (GIA).