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The diameter of a one-carat round or brilliant cut diamond typically measures between 6.4 and 6.5 millimeters. The term carat refers to weight not size, so a one-carat diamond doesn't need to conform to specific measurem... More »

The price range for 1-carat diamonds is between $3,080 and $26,950 per carat. The price of a 1-carat diamond depends on many factors and can therefore vary greatly. More »

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 »

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A round diamond typically has 57 to 58 facets. This is one of the most famous diamond cuts, and it makes up 75 percent of all diamond sales. Compared to a round diamond, a princess diamond has 53 facets and an emerald ha... More »

There are the precious gemstones like diamond, ruby, sapphire and emerald. There are also the semi-precious gemstones like turquoise, amethyst, garnet and quartz. There are also the gemstones that are considered birthsto... More »

A 2-carat diamond has a width of 8.2 mm in the round brilliant cut. However, it is important to remember that 2-carat diamonds with different cuts typically have differing size measurements. More »

A diamond grading chart is a rating system for the internal characteristics and surface conditions of diamonds developed by the GIA, an independent non-profit laboratory that rates and certifies diamonds. The chart consi... More »