Sterling Black Onyx Rosary Boxed. 6mm Sterling Black Onyx Rosary Boxed. Features 6mm beads. Crafted with GLASS beads. Beautiful sterling colorway. Includes a STERLING SILVER crucifix. Center piece in STERLING SILVER. Rosary length: 21.5″. Handcrafted with attention to detail, this McVan rosary combines traditional artistry with quality materials for a meaningful devotional piece.