EMERALS AND DIAMOND RING, BULGARI, ca. 1977. Platinum 950 and prongs in yellow gold 750. Classic-elegant ring, the top set with 1 Columbian octagonal emerald of 4.47 ct, of fine quality and untreated, flanked by 2 trilliant-cut diamonds totalling ca. 0.94 ct, signed Bulgari. Custom-made. Size 48. With original case and Gemlab Report No. 1730/08 and copy of the Bulgari certificate.