PLATINUM, SAPPHIRE AND DIAMOND 'TROMBINO' RING, BULGARI Accompanied by SSEF report numbered 90742, dated 8 March 2017, stating that..

Description: PLATINUM, SAPPHIRE AND DIAMOND 'TROMBINO' RING, BULGARI
Of bombé design, centring on an antique cushion-shaped blue sapphire of medium strong saturation weighing approximately 10.00 carats claw-set within a surround of brilliant-cut and tapered baguette diamonds, together weighing approximately 2.80 carats, size M, signed Bulgari.
Accompanied by SSEF report numbered 90742, dated 8 March 2017, stating that the sapphire is approximately 10 carats, of Ceylon (Sri Lankan) origin, with no evidence of heat treatment.

LITERATURE:
Amanda Triossi, Between Eternity and History, Bulgari, From 1884 to 2009, 125 Years of Italian Jewels, Skira, Milan, 2009, pp. 254-255, 295 (illustrated, another example).