The Rosary of the Seven Sorrows, or Chaplet of the Seven Dolours, is a devotion to Mary as the Sorrowful Mother that dates to the 13th century. It became quite popular in Europe during the ravages of the Black Plague.
There are several methods for praying this chaplet. This particular piece reflects my preferred approach to the devotion (and my aesthetic sense). It consists of seven segments of seven cobalt-blue glass beads, each separated by a faceted Czech glass pater bead and a Mexican sacred/immaculate heart milagro. The septets are connected with a repurposed chandelier crystal, and the pendant terminates with a detailed milagro-style focal heart charm (no antiphon beads).More info available at Seraphin Station.