What is the Difference Between Simulated Gemstones and Genuine Gemstones?

Simulated (sometimes called synthetic) gemstones are created in laboratories and emulate the characteristics and look of genuine gemstones. For example, cubic zirconia is a diamond simulant composed of zirconium oxide. Simulated stones tend to be vivid in colour as impurities are not present in a lab, and therefore do not modify the clarity or hue of the stone.

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