Do Tiffany engagement rings come in a blue box?

Yes, Tiffany & Co. engagement rings come in a blue box. Called Tiffany Blue, the color of the box is a trademark of Tiffany & Co. It debuted in 1886, when the luxury jewelry maker first began packaging its signature diamond engagement ring in the now iconic blue boxes. Explore an assortment of Tiffany & Co. engagement rings on 1stDibs.