A classic vintage signet ring crafted from yellow or rose gold. Judging by its distinctive design and engraving style, the piece dates back to the Soviet era (approximately the 1970s–1980s). Key specifications: Design: An oval face featuring off-center engraving; the right side is decorated with a diamond-cut finish—typical of Soviet jewelry—consisting of hatched lines that form a geometric pattern. Setting: A single small, faceted dark blue sapphire is set at the lower part of the pattern.