A rare Russian Imperial presentation gold, diamond and enamel ring, circa 1762-1796

of oval shield form, centered with the diamond-set cypher of Catherine II on a blue guilloché enamel ground within a border of rose-cut diamonds, with gold shank, unmarked

in overall 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. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. 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.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

For a comparable presentation ring with the diamond-set cypher of Catherine II on a polished chrysoprase in the Hermitage collections, see O. Kostiuk, Peterburgskie iuveliry XVIII-XIX vek, St. Petersburg, 2000, p. 79 and U. Tillander-Godenhielm, Jewels from Imperial St. Petersburg, St. Petersburg/La Berlière, 2012, p. 21. A presentation ring with a cameo portrait of the Empress and another with the diamond-set monogram of Pavel Petrovich are reproduced on pages 92 and 93 of the former. It is interesting to note that all three examples, like the present lot, are unmarked.