A Victorian diamond double serpent ring

A Victorian diamond double serpent ring, the graduated old mine cut diamonds in a crossover serpent setting, approximately 0.60 carats total, hallmarked London 1888, finger size Q, 5.9g gross

Colour H-J, clarity mostly VS-SI, there are some naturals to girdles visible, One of the diamonds is slightly loose in the setting, there is wear to the setting commensurate with age and use, some thinning to the back of the setting.