Leilão Bidspirit | 18k yellow gold and diamond

18k yellow gold and diamond ring 0.51 ct - Solitaire model in 18k yellow gold with a central emerald-cut diamond weighing approx. 0.51 ct, colour J, purity SI/1, mounted on four claws.  Inner ring diameter: 16.75 mm With GIA certificate, numbering: 2434254059