Art Deco Sapphire & Ruby "Day & Night" Eternity Ring edwardian Superb Portuguese sapphire and diamond

Superb Portuguese sapphire and diamond boat ring with gorgeous scrolled gallery

however it was made in the late Victorian era (in France) at the turn of the 20th Century

the word options would be: coders (not really a thing back then)

the Globe and Compass for Astronomy (Urania)

Art Deco Sapphire & Ruby "Day & Night" Eternity Ring edwardian Superb Portuguese sapphire and diamondDATE: Art Deco, c. 1920 A lovely Art Deco "Day and Night" eternity ring this one set half sapphire, half ruby. It's crafted in platinum throughout and fits a size 6 finger. Dates from the Art Deco period, circa 1920. STONES Sapphire & Ruby MEASUREMENTS Size: 6 not resizable Width of band: 4mm Rise off finger: 2. 5mm WEIGHT 5. 1g MARKS No marks present, tests as platinum CONDITION Very good