Born in
Gram, Denmark, in 1940, Hansen moved to New Zealand with his parents and siblings in 1952. After undertaking a traditional jewellery apprenticeship at Sweeney's Jewellers in
Auckland, he held his first solo exhibition at
New Vision Gallery in 1960. He also attended night courses at the School of Applied Arts & Industrial design, Copenhagen. He married Gurli Winter in 1965 and they travelled to New Zealand together, and opened their first jewellery business in
Glen Eden, Auckland before moving to
Nelson in 1968. During the 1980s, he served as an advisor on the
Queen Elizabeth II Arts Council of New Zealand, and was a founding member of Details, the Jewellers, Bone and Stone Carvers of New Zealand. In the early 1990s he served as the Artist in Residence at
Otago Polytechnic in
Dunedin. Across his lifetime he exhibited widely in over 30 solo exhibitions, and participated in a large number of group exhibitions in New Zealand, Australia, and Europe. In 2021
Polygon highlighted that, "While the
One Ring may be Jens Hansen’s global legacy, evidence of his broader artistic impact on New Zealand art and culture appear throughout the island nation. 'He introduced emerging jewelers and silversmiths to workshop methods and forms of modernism through the Danish lens,' [Justine] Olsen told Polygon. In 2004, the national museum
Te Papa added some of his early pieces to their permanent collection. Hansen also recruited and taught many next-generation jewelers and artists, through summer painting and sculpture classes at the local polytechnic, local workshop demonstrations, and offering bench space to any jeweler who asked". == Notable works ==