introduction vincent pardieu (1 resultados)

Soft cover. Condición: Fine. Jewelry Television Special Edition ; 2nd ed. ; xix, 385 pages : color illustrations ; 30 cm ; ISBN 9780972822329 0972822321 LCCN 2017470827 ; LC NK5530 .W57 2016 Dewey 739.27075 ; color photographic stiff paper wrappers ; ivided into two parts: In plain non-technical language, Part I redefines preciousness and gently guides the reader toward a real understanding of those criteria that make a gemstone. Part II contains a series of individual essays that apply the criteria of connoisseurship to 35 of today's most important gemstones. The book covers precious stones old and new including diamond, pearl, tourmaline, sapphire, chalcedony, spinel, ruby, and garnet. ; Contents: Precious Gems: The History of a Concept -- Preciousness Redefined: The Modern Concept of a Gem -- Connoisseurship: Rethinking the Four Cs -- Connoisseurship: Secrets of the Trade -- Connoisseurship: Grading Special Cases -- Caveats -- New Sources -- PART II PROBES: A NEW LIST OF PRECIOUS GEMSTONES -- Alexandrite -- Amethyst -- Introduction and Overview --The Beryl Family --Aquamarine --Emerald --Introduction and Overview --Fabulous Feldspars --Moonstone --Sunstone --Introduction and Overview -- Chalcedony: Aristocratic Agates --Gem Chrysocolla -- Chrysoprase --Carnelian --Blue Agate --Introduction and Overview --Blue White Diamonds --Colorless Diamonds --Golconda or Type IIa Diamonds --Introduction and Overview --The Garnet Group --Moonstone --Tsavorite Garnet --Malaya Garnet --Spessartite Garnet --Introduction and Overview --The World of Natural Pearls --Natural Nacreous Pearls --Conch Pearls --Introduction and Overview --Cultured Pearls --The Tahitian Cultured Black Pearl --Freshwater Cultured Pearls from China --South Sea Cultured Pearls --Peridot --Topaz --Introduction and Overview --Ruby & Sapphire --Blue Sapphire --Padparadscha Sapphire --Ruby/Pink Sapphire --Introduction and Overview --Jade, The Inscrutable Gem --Jadeite --Introduction and Overview --Opal --Introduction and Overview --Tourmaline --Paraíba Tourmaline --Green Tourmaline --Chrome Green Tourmaline --Blue Tourmaline --Red/Pink Tourmaline --Other Colors of Tourmaline --Tanzanite --Itroduction and Overview --Fancy Color Diamonds --Red Diamonds --Pink Diamonds --Purple Diamonds --Green Diamonds --Blue Diamonds --Orange Diamonds --Brown Diamonds --Yellow Diamonds --Violet Diamonds --Introduction and Overview --Spinel --Red Spinel --Blue Spinel ; The definitive book for anyone wanting to learn how the best gemologists in the world evaluate precious gems, and what makes one stone merely a good stone versus a truly fabulous museum-quality gem. Author, "Richard W. Wise is one of the world's foremost gemologists." Gemkey Magazine FINE. Book.