A vintage gold ring with a dark sapphire centerpiece. Design Features: Setting: The center stone is set in a decorative bezel shaped like a flower or sun with carved petals. This type of cut-out and detailed metalwork is typical of Soviet jewelry (for example, from the Russkie Samotsvety, Bronnitsky, or Riga factories), as well as European vintage jewelry from the 1960s–1980s. Shaft: The ring has an elegant asymmetrical shape (called a "bypass" or wave), with the shoulders gently wrapping around the center element on both sides.