Cubic zirconia is a lab-created gemstone composed of zirconium dioxide. Gorgeous Marquise Faceted AAA Rated Cubic Zirconia Stones With Top Cut & Polish. Although not as valuable as natural diamonds, cubic zirconia is still an excellent option for those looking for a more affordable alternative or for occasional wear.
Lab Created Ruby Corundum Marquise Faceted AAA Loose Gemstones (4x2mm – 16x8mm)
Gorgeous Marquise Faceted Lab Created (Corundum) Pinkish Red Ruby. Once the lab ruby crystal has been grown, it can be cut and polished to the desired shape and size, just like a natural ruby. This process can take several weeks or even months, depending on the size of the desired lab ruby.