Léa Stein (born February 11, 1936) is a French artist and accessories maker, known for her compressed plastic buttons, brooches and bracelets.
She is often hailed as "the most notable and innovative designer of plastic jewelry of the 20th century".Little is known about her childhood, but some sources suggest that she spent part of it in a WWII concentration camp.
She also trained as an artist at a young age.
Stein entered the fashion industry in 1957 working in textiles, and by 1965 had developed an interest in plastic.
She worked with her husband, chemist Fernand Steinberger, to develop a process of layering very thin sheets of cellulose acetate (or rhodoid) and laminating them to form a "multi-coloured sandwich of plastic".
Each 'sandwich' was baked for a long time, then cooled and cut into shapes.
The process could take as long as six months.This technique allowed Stein to insert different fabrics (such as brocades and lace), colors and textures into the plastic.