Article: a ring Material: gold Hallmark: 56 Weight (g): 4.72 The size of the ring: 18.5 Gemstones: diamond Year: 1908-1917 Manufaсturer's country: Russia Additional information: 3 natural diamonds, including central diamond ~1.33 ct and 2 diamonds TW ~0.24 ct; with certificate of Assay Office of Latvia