This a silver and yellow gold 14k plate ring in the shape of a 12mm flat square mounted on a rounded 3.5mm solid silver band.
X Small6L1/252.0 mm16.5 mmSmall7N 1/255.0 mm17.5 mmMedium8P 1/257.0 mm18.0 mmLarge9R 1/260.0 mm19.0 mmX Large10T 1/262.0 mm22.0 mm
