This is a Camrose & Kross JBK (Jacqueline Bouvier Kennedy) gold-tone ribbon brooch and pin set with clear crystals.
The set is a licensed replica of jewelry once owned and worn by Jacqueline Kennedy.
The original yellow ribbon brooch was reportedly worn by Kennedy to raise her husband's spirits after a back surgery.
The pieces feature a gold-plated metal with clear crystals and are signed "JBK".
Camrose & Kross produced these high-quality reproductions in the 1990s as a collectible line