Black Onyx Rosary Boxed. 6mm Genuine Black Onyx beads with pewter crucifix and center Boxed. Features 6mm beads. Crafted with Genuine Onyx beads. Beautiful genuine onyx colorway. Includes a pewter crucifix. Center piece in pewter. Rosary length: 19. Handcrafted with attention to detail, this McVan rosary combines traditional artistry with quality materials for a meaningful devotional piece.