Vintage 9ct Gold Jewelry Set with Bar Brooch, Ring, and Chain

• Doublet and Triplet - A doublet and a triplet are both composite imitation stones, consisting of two or three joined layers. A triplet is made with the crown and base of genuine material, but with a centre layer, usually of glass, the object being to make the stone appear larger than it really is. A doublet consists of only two layers.
  
  Opal doublets are quite common and consist of a thin layer of opal cemented to an opal matrix or black glass.
• Onyx - Onyx is a form of agate, used from antiquity and popular again in the 1920s and 30s. European onyx is generally green, but can be many other colours, and can contain bands of black and/or white.
  
  This multicoloured stone is widely used for table tops, lamp bases and in jewellery. Some types of onyx are also used for cameos of which the upper white layer is cut away to reveal the colour beneath.
• Faux - A French word meaning "false", but when used in decorative arts, the intention is not to deceive, but to simulate the decorative effects of the more expensive material it is imitating. The term " faux bois" meaning "false wood" refers to a furniture item that has been decorated with a marked grain (woodgrain finish)  to imitate a more expensive timber.

This item has been included into following indexes:

• rings, various gems / stones - gold not diamonds, other types 4,943