Pizazz! That's what gleaming onyx adds. Onyx has traditionally been used to banish grief and enhance self-control. What a perfect combination for a rosary! Large black onyx rosary (additional product image) incorporates 6mm size black onyx beads, 6mm sterling letters for name, and sterling silver Our Father beads while our small black onyx rosary (pictured at top) features 4mm black onyx beads.