An curved arrow pointing right. Cubic Zirconia – better known as "CZ" – are lab grown diamond simulates cut to mimic the color and brilliance of diamonds. Brian Driscoll from the Gemological ...

They come in several different colors and sizes. This best-selling crisscross ring embellished with cubic zirconia has thousands of 5-star ratings, with one reviewer raving, "I've had mine for ...