Cubic zirconia are denser and heavier than diamonds of the same size. For example, a 6.5-mm diamond is about 1 carat, while a 6.5-mm cubic zirconia is about 1.7 carats.

Lab-created diamonds cost 30% to 70% less than natural diamonds but are costlier than CZ. They maintain resale value, whereas cubic zirconia has no resale value. Lab-created diamonds are more ...

A week after the March 4 theft, staff at the Tiffany store noticed the $225,500 ring had been replaced with cubic zirconia stone, a manufactured gemstone that resembles diamonds, according to the ...

From earrings made of cubic zirconia to lab grown diamonds and stunning pearls, see our favorite wedding earrings on the market ahead. — Additional reporting by Anvita Reddy PS, There’s More ...

Then, along came cubic zirconia, an inexpensive synthetic crystal discovered in the 1930s but not developed to the point it could be faceted until 1969. By the end of the 1970s, it bypassed zircon ...