Art Deco Opal Diamond & Onyx Panel Cocktail Ring Size:8.25 Such examples in bi-metal are

Such examples in bi-metal are incredibly scarce nowadays

the year before the now legendary plane's first scheduled commercial flight (on 21st January 1976)

Signed Mauboussin Paris 750

tests as 9k gold back and front

almost square in shape with curved corners with a very slight warmth when viewed in daylight

Art Deco Opal Diamond & Onyx Panel Cocktail Ring Size:8.25 Such examples in bi-metal areDATE: Art Deco, c. 1930 A cool, and somewhat unusual, Art Deco cocktail ring featuring an opal and rose cut diamond oval cluster "floating" in a large onyx panel. It dates from the 1930s, with stepped silver shoulder details and a slender 18k gold band. STONES Opal, Diamond & Onyx MEASUREMENTS Head: 1. 8 x 1. 5cm 1. 2mm WEIGHT 8. 2g MARKS No marks present, tests as 18k gold & silver CONDITION Very good, light wear commensurate with age