Sapphire and diamond ring

Set with an oval sapphire within a cushion-shaped diamond frame, size N.

Accompanied by CISGEM report no.6617, stating the sapphire shows no indication of heating. Sapphire measuring approximately 9.86 x 7.15 x 3.53mm, and calculated to weigh approximately 1.80 carats, blue of strong saturation, with some colour zoning, some typical inclusions visible under 10 x magnification, minor chips and abrasions. Old cushion-shaped diamonds bright and lively, on average I-J colour, I clarity, as graded in the mounting. Signs of wear to the metal consistent with age and normal use.
"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."

Accompanied by a gemmological report.

Francesco Signorini, born in Rome in 1861, was a dramatic tenor and a pupil of Ottavio Bartolini at the Accademia Di Santa Cecilia in Rome and later of Enrico Tamberlick.

He made his debut in 1888 at the Mausoleo Corea in Rome with Gounod’s Faust and after 1897 sang regularly in leading dramatic Italian roles.

In 1898 he appeared at the opera house of Odessa, and moreover was engaged in Bucharest, Costantinople, Madrid and in 1902 at the German Theatre in Prague.

In 1890 he appeared as Turiddu in ‘’Cavalleria rusticana’’ at the Teatro Pagliano in Florence, making a guest appearance in 1907 in San Francisco and Los Angeles as well as in Buenos Aires.

The power and richness of his voice was such as to enable him to face even the most technically challenging works, such as Guglielmo Tell and Mascagni's Ratcliff

In 1910 he retired from the opera stage and taught in Rome. His work has recently been published in le Voci di Roma to commemorate the centenary of his death in 1917.