This ring is rare on this condition, new with tags. Gold and Ruby, excellent work, filigree tech. Made by jewelry factory in Lviv on 1980 year.
Nowadays I bought it on the territory of Ukraine.
Perhaps you will continue the provenance.
Value: ethnographic, the subject of creativity, artistic, cultural, material, collectible, subject of use
Special designation: The stamp of the State Inspectorate of the USSR and the second stamp of the name.
Material: gold 583 (14k)
Total weight: 4.17 gr
Dimensions: width - 17.5 mm = 0.683 in (at the inner)