This is a Laurel Burch "Tribe" brooch pin, also known as the "Tribe People" brooch. The pin features five stylized tribal figures in gold-tone metal with colorful enamel in various patterns. The piece is often signed "Laurel Burch" and "TRIBE" on the back.
These brooches are considered vintage costume jewelry and are part of the artist's "Spirit of Womankind" theme, which celebrates women from around the world. Laurel Burch is a renowned artist known for her vibrant and whimsical designs.