Here is a fascinating Sterling silver ring by the contemporary Danish silversmithy of Jens Johannes Aagaard (See Bio).  The design comprises a textured band of silver  with a band of gold folding from the side to the front ,  where it opens to reveal a clear stone.  This looks a bit like an eye or a serpent's head. 

Condition: Excellent, no visible damage, looks unworn

Marks: JAa 925

Size:  to fit finger size: UK: P-Q,  US 8,  Eu  57

Year: 2000s