An Art Deco diamond and sapphire ring and two emerald and diamond rings

An Art Deco diamond and sapphire ring and two emerald and diamond rings
The first in the form of an old brilliant-cut diamond figure of eight design panel ring with diamond collet centre and calibré sapphire detail, circa 1925, finger size L; the second an early 20th century pavé-set old brilliant-cut diamond circular cluster ring with calibré emerald border, two emeralds deficient, hoop broken; and a collet-set rectangular-cut emerald and rose-cut diamond cluster ring, finger size R
Partially illustrated (3)