A ruby and diamond 'Trombino' ring, by Bulgari. Photo Christie's Image Ltd 2013
Centering upon a cabochon ruby, to the baguette-cut and pavé-set diamond surround and shoulders, mounted in platinum and gold, ring size 8¼, in dark blue leather Bulgari case. Signed Bulgari. Estimate CHF28,000 – CHF48,000
Christie's. MAGNIFICENT JEWELS. 15 May 2013. Geneva