This is a stunning adjustable ring designed by Karl Lagerfeld the 1960s, early in his career at the Italian fashion house Tiziani. It has a round plaque fitted with rows of blue, white, red, white and green rhinestones, all prong set. Metal beadwork appears between the rows of stones. It measures 1.25” across. The ring itself is a band and can expand or tighten according to requirements.There is a green stone missing at the end of the row.