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 »

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A 1-carat diamond ring is a piece of jewelry that features a 1-carat weight diamond or multiple diamonds totalling 1 carat affixed to a circular band, which is usually made out of a precious metal. The ring is meant to b... More »

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A 1-carat cubic zirconia (CZ) is not the same size as a 1-carat diamond, because the densities of the two materials are not equal, so the size of the two cannot be equal. Cubic zirconia is denser than a diamond, and when... More »

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

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 »

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

A 1-carat cubic zirconia (CZ) is not the same size as a 1-carat diamond, because the densities of the two materials are not equal, so the size of the two cannot be equal. Cubic zirconia is denser than a diamond, and when... More »

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

The birthstones for each month are garnet for January, amethyst for February, aquamarine for March, diamond for April, emerald for May, pearl for June, ruby for July, peridot for August, sapphire for September, opal for ... More »

A diamond with a clarity rating of I1 or I2 is considered relatively low-quality, at least in terms of clarity. I2 and I3 are considered grades of "included" by the Gemological Institute of America, which means they cont... More »

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