The story of Metal & Stone Jewellers is deeply connected to the legacy of Maurice’s father, Manfred Lorenz, whose journey began in Berlin, Germany. Trained as a Goldsmith in the traditional European tradition, Manfred mastered the time-honoured techniques of fine jewellery making before seeking adventure abroad. He later migrated to Adelaide, Australia, where his first introduction to the country was working on the South Australian railways. As soon as the opportunity arose, he returned to his true craft and continued his work as a Goldsmith.

Over an extraordinary 67-year career, Manfred became widely respected for his exceptional craftsmanship and award-winning jewellery designs, particularly those featuring Australian opals. He was also one of the founding members of the Goldsmiths Guild of South Australia, helping to support and uphold the standards of traditional goldsmithing in the state. His dedication to craftsmanship and artistry laid the foundation for the skills and values that continue to shape Metal & Stone Jewellers today.

Sonya Lorenz is the Co-Founder of Metal & Stone Jewellers and the studio’s Gemmologist. Originally trained as a Modern Languages teacher, Sonya discovered the world of jewellery design and manufacture after marrying Maurice and becoming involved in the family craft. Over the past 16 years in the industry she has developed a deep passion for gemstones and has become a qualified gemmologist, completing her studies with the Gemmological Association of Australia. Sonya is responsible for sourcing and curating the studio’s gemstone collection, travelling to key gem destinations to secure exceptional stones for clients. Working closely with Maurice, she collaborates on every stage of the design process, helping transform remarkable gemstones into beautifully crafted pieces of jewellery.