There are three different types of Swarovski crystal. Swarovski branded crystal, Swarovski Golden Teak branded crystal, and SPECTRA CRYSTAL Reliable crystal quality by Swarovski. This is Swarovski branded crystal - Absolute Perfection The Seal "crystals from Swarovski" serves as a certificate of authenticity for products with genuine Swarovski crystals. Considered the finest crystal in the world, Swarovski branded crystal is manufactured by Swarovski AG in the Austrian Alps. Optically pure and free of flaws, the crystal is perfect in every way. Swarovski uses the term "Perfect Geometry" to explain the facet designs that are expertly machine cut into the surface of the crystal. All the crystals are treated with an invisible coating, which eliminates dust attraction and makes it easier to clean. Each crystal of 12mm in size or larger is indelibly etched with a trapezoidal marking to signify that you have purchased the most perfect crystal. Swarovski crystals are technologically advanced to enhance brilliance by achieving the perfect chemical balance and are produced according to the innovative, lead-free Advanced Crystal standard. Swarovski brand stands behind each crystal and is the culmination of a stringent manufacturing process and reflects the upmost current and traditional trends for crystal lighting. A Swarovski lighting fixture is worth the investment as it becomes a reflection of your good taste and demanding elegance. Color/finish: polished chrome Part of the Maria Theresa Collection Glass base Measures 15in high Measures 16.5in wide x 15in high x 16.5in in diameter Requires four 60-watt bulbs (not included) Direct wire fixture Installation hardware included Wire measures 72in high UL approved Imported