Vintage adjustable geometric ring design circa 1970 agate Chrome size 55FR. Or about 17.75 mm Very light oxidation on the back as indicated. In the title, the ring is adjustable; you can stretch or tighten the band. Width approximately 2.1 cm. Line thickness approximately 0.6 cm Genuine decorative stone Condition: Used: Item has been worn. ...Used: Item has been worn. any potential imperfections. Dominant stone: Agate Brand: Jewelry, 1970 Type: Set ring Country of origin: France Size: 55 Dominant color: Green Material: Stone Metal: Metal, chrome Ring shape: Triangular