Here is a beautiful Edwardian snake ring in 9k rose gold. It is hallmarked Chester, 1905 and 9k gold. There is a garnet set in the snakes head.

Measurements: 12.2 - 7.7 mm wide / 3.6 - 1.3 mm thick
Metal: 9k rose gold
Markings: Hallmarked Chester 9k 1905
Size: 9.25 (not sizeable due to hollow construction)
Circa: 1905
Condition: 8 - (looks like it has never been sized)
Weight: 3.3 grams