1.25 ct diamond and emerald ring

Ring in 18k white gold. Two rows of 17 emeralds respectively, square cut, totaling a weight of ca. 1.25 ct, set in rail, framing a center with baguette-cut diamonds and brilliant, color E-F, purity IF, with a total weight of ca. 0.50 ct. Punch on the back.
The carats of the diamonds and emeralds are engraved on the inside of the ring.
Weight: 6 g.
Measurements: 17 mm (inside diameter); 12 mm (front).