This is a Elliptical earrings.
In these elliptical earrings of 1924, Van Cleef & Arpels used a clever trompe l’oeil setting to give the appearance of overlapping loops of diamonds and sapphires that would have been seen with bobbed hair.
It is credited
Its dimensions are
L x W: 12.7 × 2.2 cm (5 in. × 7/8 in.)
This object was previously on display as a part of the exhibition The Jazz Age: American Style in the 1920s.