Diamond and onyx necklace, circa 1925

The circular-cut diamond, suspended from a series of rectangular shaped links set with circular-, single-cut and baguette diamonds and accented with onyx, the necklace similarly set, length approximately 392mm, several small diamonds and onyx deficient.

Central diamond measuring approximately 12.70 x 12.50 x 7.80mm, calculated to weigh approximately 7.50 carats, M-N colour, VS clarity, as gauged and graded in mounting. Diamonds estimated to weigh a total of approximately 11.00-12.00 carats, J-K colour, VS-SI clarity, as gauged and graded in mounting. Several small diamonds and some onyx deficient. Clasp secure. Signs of wear to the metal consistent with normal use. In good condition.
"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 and to the Notice regarding import of Burmese jadeite and rubies into the US.
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."