Estate Emerald & Diamond Necklace

Centering a square step cut emerald weighing 3.30ct., within an ornate bow motif mounting set with Single cut diamonds weighing approx. 1.58ctw., suspending a pear shaped Rose cut diamond weighing 0.65ct., all suspended from a chain with emerald beads weighing 39ctw., finished with a clasp set with diamonds weighing approx.0.21ctw., fashioned in platinum & 18k yellow gold. Converted from antique & estate components.