In the 1930s, the creative women at the House of René Boivin returned to naturalistic themes—like this blue sapphire "Feuille," or "Leaf," brooch—a...

This rare Cartier Paris aquamarine brooch with its bold diamond chevron patterning dates from the 1930s, when designers created a dynamic series of...

This intriguing brooch by Bulgari is set with six-and-a-half carats of round brilliant-cut diamonds, platinum set on a mount of yellow gold wire wo...

Composed of over five carats of diamonds set in platinum, this Art Deco brooch by E.M. Gattle & Co. depicts a flowering plant within an archite...