FEATURES OF PROCESSING OF GEMS AND ORGANOGENIC FORMATIONS FOR JEWELLERY AND ART PRODUCTS
The article deals with the features of the use of gems and organogenic formations subjected to various degrees of processing in various jewellery and art products. Using examples of baroque pearls, drusas, gems, cut gems and carved gems, it is shown that the properties and sizes of gems determine compositional solutions for their use in jewellery. It is shown in various jewellery-artistic wares, that depending on the type of mineral raw material or organogenic formations (pearls, shells) a different depth and methods of its treatment are used. Primary systematisation of raw material is conducted on the degree of his treatment. It is shown that inserts with unique properties always occupy a place in the centre of the decoration composition, and the different depth of their processing allows one identifying and emphasising their uniqueness. Examples of historical and modern jewelleries are made with different unique insertions.