Boucheron

Boucheron Diamond and Blue Enamel Flower Brooch

Cartier

Cartier Citrine, Onyx and Diamond Sailboat Brooch

Tiffany & Co.

Jean Schlumberger for Tiffany & Co. Blue Book Etoile de Mer Clip Brooch

Rene Boivin

Pair of René Boivin “Etoile de Mer” Sapphire and Tourmaline Brooches

Michele della Valle

Michele della Valle Sapphire and Diamond Gecko Brooch

Cartier

Cartier Art Deco Sapphire and Diamond Stickpin, c. 1920

Cartier

Cartier Double-Sided Stickpin, c. 1920

Aaron Henry

19k Gold and Diamond Leaf Brooch