This word is also known as "Boho" for short. The term refers to an ethnic look that combines clothing and accessories similar to those worn by native people from around the world. To me, it indicates more of an attitude than a definite style, since Bohemian can be used to describe many different looks.
Throughout history, bohemian style jewelry has always been admired for its statement, weight of the pieces and the colors used. The jewelry is very organic, with wood jewelry, and genuine stones being the prominent materials used in the jewelry. Many of the styles can be considered "plus sized" - not because they are to be worn by larger women, but because the jewelry itself becomes the fashion statement because of the size.