Amethysts, citrine quartz, peridots, garnets and topaz mounted upside down point their peaks like mini spikes in the jewelry from the Stones collection, created by the Italian Peruffo. This setting offers a new way to appreciate the color of gems and their brilliance is intensified because they reflect a broader spectrum of colors from many angles. Plus, an ultra-light setting with 18- and 9-karat gold cages makes the stones look like shooting stars. They are disruptive pieces with a certain punk chic air.