Tiffany. According to the information of the blue box diamond ring, Tiffany's diamond ring is packed in a dark blue box. TiffanyBlueBox TiffanyBlue gift box, striking and chic Tiffany blue, was originally used for the cover of Tiffany's annual blue book of high-end jewelry catalogue, first published in 1845, and carefully selected by its founder, Mr. Charles Louis Tiffany.