This was an era where artists became increasingly involved in jewellery design using many sharp and geometric patterns to create pieces with concentrations of gemstones. Diamonds with bright coloured stones are a defining feature of jewellery from this time, which came partly from increased travel and access to stones from the Far East, such as sapphires, emerald, carved jade and coral. In the 30's gold came back into fashion as it became cheaper than platinum. The Art Deco style was influenced heavily by Cubism, and many designs exude opulence, sophistication and colour. Archaeological digs uncovered many Ancient Egyptian finds that also influenced designers bringing an exotic feel to many jewellery creations, where geometry and colour took centre stage.