Manufacturing and refining of art, jewelry and objects of all kinds, made from various materials and using different processes, mainly but not limited to, working with precious and non-precious metals, partly with engraving and/or set precious stones, faceting and polishing of precious stones, production of modern jewelry as well as replicas of historical jewelry and art objects, trade in art and jewelry objects of all kinds as well as precious stones, surface treatment of various objects, including but not limited to, gilding, galvanic gilding and other surface treatments of precious metals, non-precious metals and other materials from own production as well as on behalf of customers, organization of auctions, vernissages and exhibitions of all kinds related to art objects, objects made of precious and non-precious metals, jewelry, precious stones and minerals.