Ernst Pfenninger, Swiss & Australian designer, goldsmith & silversmith designs & handmakes a diverse range of rings from classic to the unusual: dress, engagement &, wedding rings at Studio 303. Each creation is unique and a myriad of designs are made. Ernst uses 18kt yellow & 18kt white gold, sterling silver & diamonds, coloured gemstones, and an array of other materials. Interesting creations are handcrafted to the highest quality of craftsmanship. Free shipping Australia.