Engraved Vintage Filigree Old Euro Diamond Ring Art Deco.  This antique art deco diamond solitaire is set with a ..42 carat old European cut center diamond in 18 karat white gold. The center diamond is set with four (4) split-prong filigree head.  The mounting features a scrolling repousse design and offers interesting texture.  This elegant solitaire has multiple desirable elements of antique designs.   The ring is hallmarked 18K indicating that it is 18 karat white gold.