We date this ring approximately middle of the 19 century.
It was made of 12 carat gold. There are 29 rose cut diamonds mounted on marquise with different sizes, colors and clarity.
Ring size 52.5 European, M 1/2 for GB, 6 1/4 for US and Canada.
Marquise dimentions 34,5х12 mm, weight is 8.2 grs.