Sky Blue Brooches

A 14 karat blackened gold, blue topaz, moonstone, hardstone and diamond brooch by Kung Tsung-Tzu.

An 18 kart gold, natural pearl, sapphire, diamond and plique-à-jour enamel brooch by Marcus & Co., circa 1897.

An 18 karat gold, platinum, aquamarine, and diamond pendant-brooch by F.J. Cooper.

An 18 karat gold, platinum, sapphire and diamond brooch by Schlumberger for Tiffany & Co., France, circa 1960.

An 18 karat gold, sapphire, and diamond clip-brooch by Van Cleef & Arpels, circa 1965.

An 18 karat gold, sapphire and diamond pendant-brooch by Tiffany & Co., circa 1910.

An 18 karat gold, sapphire, ruby and diamond brooch, France.

An 18 karat white gold, tanzanite, sapphire and diamond brooch, by Sifen Chang.

A diamond and sapphire brooch.

A late 19th century sapphire and diamond crescent brooch.

A multi-gem and simulated turquoise brooch by David Webb, 1965.

A purple sapphire, diamond and pearl brooch.

Bird Brooches

An 18 karat gold, golden beryl, enamel and diamond owl brooch by Lucien Gaillard, France.

An 18 karat gold, platinum, colored stone, enamel and diamond jabot pin depicting two dueling roosters.

An 18 karat gold, platinum, ruby, cultured pearl, and enamel falcon brooch by Verdura.

An aquamarine, diamond and ruby "Bird on a Rock" brooch by Schlumberger for Tiffany & Co.

A ruby, emerald, sapphire and diamond bird of paradise brooch.

A labradorite, gold and diamond bird brooch by Sterlé, 1960s.

A pair of enamel and gem-set toucan brooches by Frascarolo, 1960s.

A platinum, diamond, amethyst, emerald and onyx jabot pin by Janesich, France, circa 1925.

A platinum, diamond, ruby and enamel bird brooch.

A renaissance-revival 18 karat gold, natural pearl, diamond, colored stone and enamel pendant brooch, circa 1880. I guess this isn't a bird, it's a chimera or a gryphon or something, but that's fine.

Jewels by Schlumberger II

18 karat gold, platinum, emerald and diamond ring, Schlumberger for Tiffany & Co.

18 karat gold, platinum, sapphire and diamond "Morning Glory" necklace, Schlumberger for Tiffany & Co.

18 karat two-color gold and diamond brooch, Schlumberger for Tiffany & Co., France.

A diamond and multi-gem brooch, Schlumberger for Tiffany & Co.

A pair of diamond and colored sapphire ear clips, Schlumberger for Tiffany & Co.

An 18 karat gold, platinum, and diamond brooch, Schlumberger for Tiffany & Co., France, circa 1960.

Perhaps Schlumberger's most famous piece, "Bird on a Rock" brooch, containing the famed Tiffany yellow diamond.

A Jean Schlumberger for Tiffany & Co. turquoise necklace, $350,000.

Star sapphire, gold, and diamond earrings, Schlumberger for Tiffany & Co.

A natural pearl and diamond brooch, Schlumberger for Tiffany & Co.

A platinum, 18 karat gold and diamond necklace, Schlumberger for Tiffany & Co., France.

Platinum, 18 karat gold, aquamarine, sapphire and diamond brooch and matching earclips, Schlumberger for Tiffany & Co., circa 1960.

Platinum, 18 karat gold, cultured pearl, diamond, ruby and enamel "Ailes" brooch, Schlumberger for Tiffany & Co., France, 1967.

Platinum, aquamarine and diamond ring, Schlumberger for Tiffany & Co.

Jewels by Schlumberger

 Jean Michel Schlumberger (June 24, 1907 – August 29, 1987) was a French jewelry designer especially well known for his work at Tiffany & Co.

Schlumberger began his career creating buttons for Elsa Schiaparelli in the 1930s. Schiaparelli later commissioned him to design costume jewelry for her firm.

After serving in World War II, Schlumberger came to New York and began to design clothing for Chez Ninon. In 1946, he opened a jewelry salon with his business partner Nicolas Bongard (1908–2000).

In 1956, the president of Tiffany & Co., Walter Hoving, asked Schlumberger to begin designing for the firm. He had his own workshop at the company until his retirement in the late 1970s and was eventually made a Vice-President.

Schlumberger's designs at Tiffany & Co. were remarkable for their whimsical interpretations of natural forms. He was especially inspired by sea creatures and other animals. Diana Vreeland wrote that Schlumberger "appreciates the miracle of jewels. For him, they are the ways and means to the realization of his dreams." *

18 karat gold and sapphire ring, Schlumberger for Tiffany and Co.

18 karat gold and sapphire ring, Schlumberger for Tiffany and Co.

18 karat gold, colored stone and enamel fish brooch, Schlumberger for Tiffany and Co.

18 karat gold, demantoid garnet and turquoise "Berry" brooch, Schlumberger for Tiffany and Co.

18 karat gold, platinum, and diamond "Tulip" necklace, Schlumberger for Tiffany and Co., France.

18 karat gold, platinum, and diamond "Tulip" necklace, Schlumberger for Tiffany and Co., France.

18 karat gold, platinum, and diamond brooch and earclips, Schlumberger for Tiffany and Co., France.

18 karat gold, platinum, amethyst, emerald and diamond "Vignie" necklace, Schlumberger for Tiffany and Co.

18 karat gold, platinum, amethyst, emerald and diamond "Vignie" necklace, Schlumberger for Tiffany and Co.

18 karat gold, platinum, amethyst, turquoise and diamond ring, Schlumberger for Tiffany and Co., France.

18 karat gold, emerald, ruby, sapphire, and diamond earrings, Schlumberger for Tiffany and Co.

19 karat gold, platinum, diamond and emerald brooch, Schlumberger for Tiffany and Co., France.

18 Karat Gold, Platinum, Diamond and Colored Stone 'Gazelle' Brooch, Schlumberger for Tiffany & Co.

18 karat gold, platinum, diamond, emerald, and sapphire brooch, Schlumberger for Tiffany & Co., circa 1960.

*Schlumberger biography courtesy of Wikipedia.