Fabulous, Art Deco, Platinum & 18ct Gold, Black Onyx and Diamond geometric design ring, Circa 1925
A fine example of a black onyx and diamond ring from the Art Deco era, featuring a diamond shaped black onyx panel surrounded by twenty-eight, rose-cut diamonds.
Designed in a geometric style, the striking contrast of black onyx and diamond screams Art Deco !.
Skillfully made in platinum with the central section in 18ct gold, the head of the ring measures 10x10mm and sits very flat to the finger (1.7mm high).
Hallmarked: Plat (denotes platinum) on shank and 18 on reverse of the head of the ring together with Makers initials: BK & T
RING SIZE: UK: S USA: 9.25 (Sizing available)
WEIGHT: 3.2 grams
HALLMARKS: As above
DATE: Art Deco (1920 to 1935)