IMPERIAL ENDOWMENT RING WITH MONOGRAM OF RUSSIAN TSAR ALEXANDER I Blue enamel on silver set with diamonds and surrounded with eight, old cut, rose-cut diamonds Eight diamonds, circa 7cts. The setting is of great finesse, the gold part is finely chased and the silver and diamonds particularly well worked Master' mark: 'ET' and number: '2997' gross weight: 9 gr. The ring was adjusted and reformed, which resulted in the loss of the title punch and that of the Russian tester