For you snake jewelry lovers out there, here is a super slithery snake ring from the late Victorian era, with an old cut faceted amethyst, in sterling silver.  This ring is currently a size 6 and could potentially be resized as needed.  Stamped 'STER' and acid-tested for metal content.  Measures 14mm at the widest and weighs 3.8 grams.  Ssssssuperb!