Glass Imitations of Precious Stones in Historical Jewellery

Since the discovery of its production (from the antiquity up to the Middle ages), glass used to be a highly appreciated material. the oldest "artificial" gem in the ancient Egypt was aventurine that was imitated by glass with scattered copper dust). in jewellery, this material is still one of favourites. the effort to use glass in the most different ways led to production of various decorative materials and to imitations of precious stones as well. glass production technology started to develop more remarkably in the 16th century. in this time glasses of various colours were produced that made imitations of natural precious stones of the whole colour range possible.