1. Vacheron Constantin
(Manufacturers/Luxury Timepieces)

... $11 million. Kallista had 118 emerald-cut diamonds. It took about 6,000 hours for the watch masters to make this watch and about 20 months for the best jewelers in the world to enrich the watch. When ...

2. Patek Philippe
(Manufacturers/Luxury Timepieces)

... the Great Exhibition of London. Queen Victoria owned one more exclusive Patek Philippe timepiece to be worn pinned to clothing. The watch suspended from a diamond and enamel brooch. The list of Patek ...

3. Breguet
(Manufacturers/Luxury Timepieces)

... by diamonds) Classique Marine Heritage Type XX Reine de Naples - oval bezels Breguet's distinguished patrons: Louis Philippe I, Duke of Orléans Marie-Antoinette, Queen of France Louis ...

4. Emeralds
(Gemstones/Colored Gemstones)

... blue with no visible gray mask. Clarity Emerald tends to have numerous inclusions and surface breaking fissures. Unlike diamond where the loupe standard, i.e. 10X magnification is used to grade clarity, ...

5. Rubies
(Gemstones/Colored Gemstones)

... Latin for red. Other varieties of gem-quality corundum are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald and the diamond. Prices of ...

6. Sapphires
(Gemstones/Colored Gemstones)

... is going toward the red of rubies. Sapphires also occur in shades of orange and brown, and colorless sapphires are sometimes used as diamond substitutes in jewelry. Salmon-color padparadscha sapphires ...

7. Diamonds
(Gemstones/Diamonds)

An Overview of Diamonds In mineralogy, diamond is the allotrope of carbon where the carbon atoms are arranged in an isometric-hexoctahedral crystal lattice. Its hardness and high dispersion of light ...

8. Harry Winston
(Manufacturers/American Jewelers)

American diamond-dealer and jeweler nicknamed “The King of Diamonds.” Harry Winston (1896-1976) entered the jewelry trade in the 1920’s. His speciality was buying large collections of gems and reselling ...

9. Pierre Vever
(Manufacturers/French Jewelers)

... also tended to use precious stones like diamonds and rubies to embellish their pieces rather than semi-precious and organic gemstones. The most famous of these guest designers was Eugène Grasset whose ...

10. Verdura
(Manufacturers/Italian Jewelers)

... Verdura also introduced shell-motif jewellery. The pieces often featured actual molluscs, which were embellished with diamonds and wrapped in wire. “What I get a kick out of,” he told the New Yorker, “is ...

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

... thrived. Alfred had a keen eye for design. Charles was charming, an impeccable salesman. Julien’s business acumen was impressive, and he procured the finest diamonds and colored stones for VCA. In 1906, ...

12. Trabert, Hoeffer-Mauboussin
(Manufacturers/American Jewelers)

... 1950’s. Trabert & Hoeffer-Mauboussin was also famous for providing Hollywood’s finest stars with exquisite, large diamond jewelry and accessories.  ...

13. George Frederick Kunz
(Gemstones/Important Gemologists)

... one could scarcely find them in a lapidary's shop, yet, reviewing those that I had gathered, it seemed to me that many ladies, even those who could afford the gesture of diamond tiara and pearl choker, ...

14. Tiffany and Company
(Manufacturers/American Jewelers)

... France’s second revolution raged. Nobles loyal to King Louis-Phillipe, desperate to flee Paris, sold their diamonds to him at heavily discounted rates and in large quantities. Thereafter diamonds were ...

15. Seaman Shepps
(Manufacturers/American Jewelers)

... of gemstones and his eclectic color combinations. Schepps favored irregularly cut, en-cabochon, or carved gemstones. Diamonds were typically ignored in favor of softly colored gemstones: light blue sapphires ...

16. William Ruser
(Manufacturers/American Jewelers)

... worked for Trabert and Hoeffer-Mauboussin in Atlantic City and Los Angeles, managing the LA branch in the late 1930’s. While keeping traditional diamond and precious gemstone merchandise in stock, ...

17. John Rubel Co.
(Manufacturers/American Jewelers)

... dancers, and dancing flowers inspired by Fantasia. The firm also produced a series of popular flower-motif brooches featuring rubies, diamonds, and turquoise—a combination that was widely copied by other ...

18. Oscar Heyman Bros.
(Manufacturers/American Jewelers)

... with important commissions. In 1969, Oscar Heyman was asked by Cartier to design and produce a setting for the Taylor-Burton diamond, a task that the firm successfully completed with great fanfare. Today ...

19. Mauboussin
(Manufacturers/French Jewelers)

... where its flagship store remains today. In its heyday Mauboussin was known for its chunky floral-motif brooches, pendants, and bracelets, often featuring bright enamels, diamonds, and bubbly colored ...

20. LaCloche Freres
(Manufacturers/Spanish Jewelers)

... 1920’s and 30’s, the brothers were famous for their brightly colored, geometric “lacquered and enamelled cigarette and vanity cases, set with diamond and precious stone decorative motifs of mixed inspiration.” ...