Brooches Jewels : Jean Schlumberger for Tiffany & Co. – gold brooch with turquoise, diamond and pe… 23 August 2018 3477 Brooches Jewels : Jean Schlumberger for Tiffany & Co. – gold brooch with turquoise, diamond and pearl. Photo taken from Tiffany Colored Gems by John Loring Ed Abrams.