How can I tell if my new Tiffany & Co. merchandise is genuine?

How can I tell if my new Tiffany & Co. merchandise is genuine?

Tiffany & Co. sells its merchandise online exclusively at: www.tiffany.com, www.tiffany.ca, fr.tiffany.ca, www.tiffany.com.mx, www.tiffany.com.br, www.tiffany.co.jp, www.tiffany.cn, zh.tiffany.com, www.tiffany.kr, www.tiffany.com.au, www.tiffany.co.uk, www.tiffany.at, be.tiffany.com, www.tiffany.fr, www.tiffany.de, www.tiffany.ie, www.tiffany.it, nl.tiffany.com, www.tiffany.es, www.tiffany.ru, international.tiffany.com and, with respect to certain select styles offered through a collaboration with Net-a-Porter, at https://www.net-a-porter.com/. For authorized store locations, please visit the Tiffany & Co. store finder at www.tiffany.com/jewelry-stores. Selected styles of Tiffany & Co. eyewear and watches are sold exclusively at authorised retail locations, under license. Buyers should be wary of purported Tiffany & Co. merchandise sold through unauthorised channels. Please beware of counterfeits.