SWAROVSKI GEMSTONES. Swarovski Zirconia are unique in their character, quality, and brilliance. Swarovski use only the finest raw materials and the most precise cutting techniques in the production of their stones, reflecting continuous commitment to technical perfection. This is why Swarovski Zirconia is considered to be the most diamond-like zirconia in the market. Created Stone (Zirconia) cuts and colors help to explore the creative boundaries of jewelry and accessories design.