Vintage Russian handmade gold ring made of 14k rose gold set with a beautiful spinell. 
This is a very unique man made gemstone, that used to be mostly in red colors and less in blue colors.
This one of a kind ring has inside Soviet hallmark 583, this is 14k gold, made in Russia around the year 1980.
The size of the ring is: 15 (55) European 7 1/4 U.S.
The size of the gemstone: 10x14 mm, 0.40x0.55 inch.
The top height of the ring is: 7.4mm, 0.30 inch.
The bandwidth of the ring is: 2.5mm 1 inch.