Valentino Tortoiseshell Sunglasses with Blue Rhinestone Detail

• Diamante / Rhinestone - A diamante and a rhinestone are both imitation diamonds made from glass, rock crystal or acrylic. Originally rhinestones were rock crystals mined from the Rhine river Rhine in the 18th century, but the term is now associated with any imitation diamonds. Diamantes and a rhinestones are used in costume jewellery, in clothing and accessories, and were especially popular in the 1930s,
• Tortoiseshell - Tortoiseshell is a translucent material that comes from the horny carapace of a certain types of turtles, including the hawksbill turtle. It is often therefore mounted on a colour underground - often red - or inlaid with gold or silver thread, as seen in Boulle furniture.
  
  The texture and colour nuances of the material are extremely important. Heated tortoiseshell can easily be formed into various shapes. Like other natural materials, tortoiseshell becomes more beautiful with use. In a time before plastic, tortoiseshell was widely used for small objects such as combs and powder compacts.
  
  In 1973, the trade of tortoiseshell worldwide was banned under CITES (The Convention on International Trade in Endangered Species). Prior to importing or exporting items containing tortoiseshell a CITES permit must be obtained. Tortoiseshell items cannot be traded on Ebay.
  
  "Faux tortoiseshell", another case of man initiating nature, is made from old-style plastics such as celluloid and cellulos and is coloured with red, yellow and brown spots to imitate the genuine article. It is commonly used in glasses frames, musical instruments and costume jewellery.

This item has been included into following indexes:

• sunglasses - (See also under individual designers) 144
• Valentino - clothing and accessories 76