It is a tiny, delicate piece.
Sale 2375 Lot 567 described as:
"Art Deco Pearl Necklace, the ivorytone pearls with rose overtones, graduating in size from approx. 1.70 to 4.10 mm, completed by a platinum, emerald-cut emerald, and old single-cut diamond melee clasp, millegrain accents, lg. 19 7/8 in., (white gold findings). Estimate $600-800"
