Emerald and diamond ring and a sapphire and diamond ring

One ring set with a step-cut emerald within a frame of brilliant-cut diamonds, size 52^1/2, Austrian assay mark, the other set with a circular-cut sapphire framed with brilliant-cut diamonds, size 57.

One ring with Austrian assay marks, inscribed HW. Stamped 750 for 18 carat gold. Emerald measuring approximately 8.31 x 7.36 x 4.75mm, green of medium strong saturation, with typical surface-reaching inclusions, small scratches. Diamonds bright and lively. Little signs of wear to the metal. In very good condition. Gross weight approximately 5 grams. Other ring inscribed KC, stamped 750 for 18 carat gold. Sapphire measuring approximately 8.49 x 8.80 x 4.51mm, blue of medium strong saturation, with typical inclusions, small scratches. Diamonds bright and lively. Scratches and signs of wear to the metal. In good condition. Gross weight approximately 8 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."