Cultured pearl, aquamarine and diamond necklace and an aquamarine and diamond ring

The necklace designed as three rows of cultured pearls measuring from approximately 7.00 to 7.50mm, the clasp set with a step-cut aquamarine framed with brilliant- and single-cut diamonds, shortest length approximately 525mm, and a ring set with a step-cut aquamarine between marquise-shaped and brilliant-cut diamond shoulders, size 54.

Formerly in the collection of Erna Sack (1898-1972).

Cultured pearls measuring from approximately 7.15 to 7.35mm, of slightly cream body colour, partly with rosé and green overtones, with good skin and luster, pinpoints and growth marks. Aquamarines measuring approximately 28.50 x 19.87 x 11.85mm and 17.40 x 14.08 x 10.63mm, calculated to weigh approximately 45 and 17 carats respectively, bluish green and greenish blue of medium strong saturation, clean to the naked eye, with minor abrasions. Diamonds bright and lively, estimated to weigh a total of approximately 1.50 - 2.00 carats. Signs of wear to the metal, evidence of resizing to the ring. Clasp secure on the necklace, safety catches. In good condition. Total gross weight approximately 138 grams.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

Erna Dorothea Luise Sack was a German singer known for her ability to reach unusually high vocal ranges. Born in Spandau in 1898, her voice was rapidly noticed in the choir in which she sang. She was active on the international scene from 1930 to 1957, also appearing in several movies.