Art Deco Openwork Dome Diamond Ring chaine ancienne or jaune 18kt yellow gold (horsehead hallmark)

18kt yellow gold (horsehead hallmark) sleeper earrings adorned with small (probably fine) pearls and black enamel

bears the Jaeger-Lecoultre signature

and dents on gold parts

bien que jusqu’au Moyen-Âge le terme désignait plutôt le lapis-lazuli

Art Deco ring in platinum (hallmark: dog)

Art Deco Openwork Dome Diamond Ring chaine ancienne or jaune 18kt yellow gold (horsehead hallmark)18Kt white gold and platinum openwork dome ring (hallmarks: eagle and dog) set in its center with a half cut diamond weighing approx. 0. 25 Ct (estimated color H, and estimated clarity SI) in a surround of rose cut diamonds, whose total weight is estimated at approx. 0. 20Ct (estimated color H to K, and estimated clarity VS to SI). French work, Circa 1930, Art Deco. Gross weight: 3. 32 g Height: 1. 10 cm Finger size: 57 (diameter 18. 00 US 7. 75).