Antique Victorian Gold & Diamond Cross Over Snake Ring

A French, antique, crossover snake ring, with two entwined snakes, with an old-cut diamond set in each head, with ruby set eyes and engraved details, mounted in gold, with a French, eagle assay mark, for 18ct gold. Circa 1880. In Victorian symbolism the coiled snake symbolized eternity. Total diamond weight 0.50 carats Finger size UK N, USA 6¾