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 »

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 »

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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The best way to tell if a stone is a real diamond or a cubic zirconia is by using a pen-sized probe called a diamond tester. When looking at the surface of the stone, a real diamond will be free from scratches and the di... More »

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A DiamondAura stone is similar to a Cubic Zirconia, or CZ, stone. The DiamondAura stones are manufactured in a laboratory and are not real diamonds. More »