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.