Emerald Enamelled Jugendstil Glass Vase, Circa 1900

• Emeralds - Emeralds have been used in jewellery making for thousands of years, and are prized for their deep green colour, which is caused by the presence of chromium and vanadium in the mineral beryl. Because of their rare colour, emeralds are often more valuable than diamonds of a similar size and quality. In jewellery making, emeralds are typically cut into round or oval shapes to maximize their color and clarity. They are often set in gold or platinum and used as the centrepiece of a piece of jewellery, such as a ring or necklace. They can also be used in combination with other gems, such as diamonds, to create intricate and beautiful designs.
• Gilding - Gilding is a method of ornamentation whereby a thin sheet of gold metal is applied to items made of wood, leather, ceramics, glass and silver for decorative purposes.
  
  For furniture including mirrors, the sheet of gold is usually applied over a coating of gesso. Gesso is a mixture of plaster of Paris and gypsum mixed with water and then applied to the carved wooden frames of mirrors and picture frames as a base for applying the gold leaf. After numerous coats of gesso have been applied, allowed to dry and then sanded a coat of "bole", a usually red coloured mixture of clay and glue is brushed on and allowed to dry, after which the gold leaf is applied. Over time parts of the gilding will rub off so the base colour can be seen. In water gilding, this was generally a blue colour, while in oil gilding, the under layer was often yellow. In Victorian times, gilders frequently used red as a pigment beneath the gold leaf.
  
  Metal was often gilded by a process known as fire gilding. Gold mixed with mercury was applied and heated, causing the mercury to evaporate, the long-term effect of which was to kill or disable the craftsman or woman from mercury poisoning. The pursuit of beauty has claimed many victims, not the least of which were the artists who made those pieces so highly sought after today.
• Jugendstil - The German and Austrian version of the Art Nouveau style and the other related styles that were expanding everywhere in Europe in the early 20th century.
  
  The name was derived from the title of the Munich cultural magazine, "Die Jugend", with the addition of "Stil", which translates as "youth style".
  
  Jugendstil encompasses all forms of architecture and art: industrial facilities, elevated-train systems, villas, churches, as well as the interior design of bars and coffee houses
  
  In Austria, Jugendstil developed also in various ways, mainly under the effect of the Viennese Secession and of the Wiener Werkstätte.
• Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
• Manner of .... / Style of ..... - A cataloguing term where the item, in the opinion of the cataloguer is a work in the style of the artist, craftsman or designer, possibly of a later period.

This item has been included into following indexes:

• Jugendstil - ceramics, glass, silver and metalware 40