"Art Deco Sapphire And Diamond Ring."
Platinum ring set with a rectangular cut-stone sapphire of approximately 1.20 carats in a double halo of diamonds and baguette-cut sapphires. At each corner, a bezel-set diamond of approximately 0.15 carats each. French work, circa 1925. Art Deco period. Weight: 4 grams. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato