CARTIER: Vintage tank solitaire diamond gold ring

18k white gold satin set to centre with a princess cut diamond. Signed CARTIER. with original case.
N. 01 diamond, square shape, princess cut, approx. 1.10 ct, F-G, VS.
Hallmarked "750 - CARTIER 1997 - 53 - 35 KB - 1.10". IT size 13 - US size 7. Weight 12.7 g.
Item condition grading: **** good.
Prague, auction No. 308 _ September 19th 2024, Lot No. 13.