Individual diamond prices vary and depend on the characteristics of each stone. Established in the 1940s, the grading system currently in use weighs each stone's color, clarity, cut and carat weight in determining its pr... More »

www.reference.com Beauty & Fashion Jewelry & Watches Precious Metals & Gems

The average cost of a half-carat diamond is between $1,500 and $2,500, as of September 2014. While size is an important factor, cut, color and clarity also play a role when pricing diamonds. More »

Carat TW stands for carat total weight. It is the combined weight of all the gemstones in a piece of jewelry. More »

You can tell whether a diamond is real or fake by looking at certain details of the diamond, such as presence of imperfections, the shape of the edges and the stone’s refractivity. Other tests include the "fog test" and ... More »

www.reference.com Beauty & Fashion Jewelry & Watches Precious Metals & Gems

To determine if a diamond is real, test it with a diamond testing device that also tests for electrical conductivity within a stone. You can also place the stone over printed text as diamonds refract too much light to al... More »

A diamond's value is determined by cut, color, clarity and carat weight, so the mounting's metal, such as white or yellow gold, may influence the color and appearance of the stone, but not its value. Diamonds are graded ... More »

Diamond transparency, also called diaphaneity or pellucidity, is a physical property of a diamond that identifies the amount of light that can pass through the stone. The transparency level of diamonds varies among stone... More »