Thermoset lucite jewelry was manufactured predominantly in the 1950s-1960s by many costume jewelry companies. It was great for jewelry because the lucite (a heavier plastic) could be molded into many creative shapes and designs. I’ve seen many examples of thermoset lucite by well-known manufacturers such as Lisner, Coro, BSK, Trifari as well as other makers signed and unsigned.
Lucite can be opaque or translucent. It can also have objects embedded into it….objects such as abalone pieces, or shells, or confetti or glitter. Confetti lucite is exactly as it sounds: lucite with confetti or glitter embedded inside. The bracelets pictured are wide with lucite pieces with embedded items. They are available on my web site with the link below.