1. Patek Philippe
(Manufacturers/Luxury Timepieces)

... a number of notable individuals, including members of royalty, movie stars and tycoons. They are notable for manufacturing most of their own components. History Antoni Patek started making pocket ...

2. Jaeger LeCoultre
(Manufacturers/Luxury Timepieces)

...  At the time, Le Coultre Co., the manufacturer, had no sales organization. Jaeger, the intervenor, was the sale sales outlet for all Le Coultre Co. products, including the Atmos clock. In 1939 Jaeger ...

3. Breguet
(Manufacturers/Luxury Timepieces)

... by Breguet's unique self-winding watch, Louis XVI bought several of his watches. Marie Antoinette commissioned the watch that was to contain every watch function known at that time, including the following: ...

4. A. Lange and Sohne
(Manufacturers/Luxury Timepieces)

... Walter Lange, restored the company with help from a family of Swiss watch manufacturers including IWC. Now A. Lange & Söhne (litt. A. Lange & Sons), like IWC, belongs to the Richemont group of ...

5. Emeralds
(Gemstones/Colored Gemstones)

... refractive index, is often used in this generally accepted practice. Other liquids, including synthetic oils and polymers with refractive indexes close to that of emerald such as Opticon are also used. ...

6. Rubies
(Gemstones/Colored Gemstones)

... of 10.0 and moissonite falling somewhere in between corundum (ruby) and diamond in hardness. All natural rubies have imperfections in them, including color impurities and inclusions of rutile needles ...

7. Sapphires
(Gemstones/Colored Gemstones)

... crystal boules. Because of its remarkable hardness sapphire is used in many applications, including infrared optical components, watch crystals, high-durability windows, and wafers for the deposition of ...

8. Diamonds
(Gemstones/Diamonds)

... this property makes diamond the ideal material for cutting and grinding tools. As the hardest known naturally-occurring material, diamond can be used to polish, cut, or wear away any material, including ...

9. Yard
(Manufacturers/American Jewelers)

...  His firm attracted a selective clientiele, including Rockefeller and his friends, with a lovely selection of extravagent Art Deco jewels as well as more whimsical pieces. One collection, inspired by ...

10. Pierre Vever
(Manufacturers/French Jewelers)

... regular contributors at international exhibitions including Moscow (1891), Chicago (1893), Brussels (1897). In 1900, the firm won a second Grand Prize at Paris’s International Exposition for their exquisite ...

11. Van Cleef & Arpels
(Manufacturers/French Jewelers)

... third contribution is more general, namely, that of being a purveyor of exceptional gems and jewellery. Over the years, Van Cleef has made numerous important acquisitions, including the “Princie Diamond,” ...

12. G. Paulding Farnham
(Manufacturers/American Jewelers)

... him with a fantastic array of colored stones including conch pearls, pink topaz, demantoid garnet, Mexican fire opals, Montana sapphires, and Arizonia turquoise. Despite Farnham’s success he was dethroned ...

13. George Frederick Kunz
(Gemstones/Important Gemologists)

... soared. Kunz was awarded numerous honorary degrees and published over 300 articles and numerous of books on gemstones. With his help, Tiffany was able to amass a truly impressive collection of gems, including ...

14. Tiffany and Company
(Manufacturers/American Jewelers)

... for Jewelry. It was the first time an American firm was bestowed with this honor. The prize-winning collection featured North American gemstones and motifs, including “an Aztec collar of gold in which ...

15. Pierre Sterlé
(Manufacturers/French Jewelers)

Sterle was a French jeweler famous for his 1940’s and 1950’s designs. In 1934, Pierre Sterlé opened a workshop on Rue St-Anne. Some of Paris’s finest jewellers patronized him, including Boucheron, Chaumet, ...

16. Shreve, Crump and Low
(Manufacturers/American Jewelers)

... commissions for trophies, including in 1899 a commission to produce the Davis cup and in, 1908, the Cy Young cup that commemorates the Major League’s best pitchers.  ...

17. Seaman Shepps
(Manufacturers/American Jewelers)

... latest French fashions, including the work of Verdura at Chanel, Belperron at Bovin, and Toussaint at Cartier, Schepps began designing his own jewelry rather than retailing the work of others. Business ...

18. Marcus and Co.
(Manufacturers/American Jewelers)

... profile clientele throughout the twentieth century, including John D. Rockefeller. The firm closed for a brief time during World War II. In 1962, it merged with Black, Starr, and Frost.  ...

19. Louis Comfort Tiffany
(Manufacturers/American Jewelers)

... glass that he patented in 1894, and stained glass. His pieces won him wide acclaim, including a Grand Prize at Paris’s International Exhibition in 1900. As of 1902, when he began to work at Tiffany's ...

20. Graff
(Manufacturers/English Jewelers)

... London. He is known for handling important diamonds including the Grand Coeur d’Afrique, a seventy-carat, heart-shaped, flawless diamond as well as The Empress Rose, a flawless, pink, pear-shaped diamond ...