Four-strand black diamond bead necklace, Tamsen Z Bijoux

The numerous faceted black diamond beads arranged in four graduating strands, altogether weighing approximately 744.70 carats, accented throughout with 22 karat gold rondelles set with small rose-cut diamonds, completed by a gold hook clasp engraved with circles, further decorated with two 18 karat gold and diamond "Z" beads, length approximately 16 inches. With purple leather box signed Tamsen Z Bijoux.