SOLD - Art Deco, Black Onyx & Diamond Geometric Ring

diamond shaped art deco ring with black onyx and diamonds
Art Deco black onyx and diamond ring in platinum and 18ct gold, featuring rose-cut diamonds, geometric design, 1920-1935.
Art Deco black onyx and diamond ring, platinum & 18ct gold, geometric design with rose-cut diamonds, UK: S, USA: 9.25
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, hallmarked, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2 grams, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
Art Deco black onyx and diamond ring, platinum and 18ct gold, geometric design
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
diamond shaped art deco ring with black onyx and diamonds
Art Deco black onyx and diamond ring in platinum and 18ct gold, featuring rose-cut diamonds, geometric design, 1920-1935.
Art Deco black onyx and diamond ring, platinum & 18ct gold, geometric design with rose-cut diamonds, UK: S, USA: 9.25
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, hallmarked, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2 grams, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
Art Deco black onyx and diamond ring, platinum and 18ct gold, geometric design
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
diamond shaped art deco ring with black onyx and diamonds
Art Deco black onyx and diamond ring in platinum and 18ct gold, featuring rose-cut diamonds, geometric design, 1920-1935.
Art Deco black onyx and diamond ring, platinum & 18ct gold, geometric design with rose-cut diamonds, UK: S, USA: 9.25
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, hallmarked, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2 grams, good condition.
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
Art Deco black onyx and diamond ring, platinum and 18ct gold, geometric design
Art Deco black onyx and diamond ring with geometric design, platinum and 18ct gold, UK size S, USA size 9.25, 3.2g, good condition.
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SOLD - Art Deco, Black Onyx & Diamond Geometric Ring


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 !.

Skilfully 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).


RING SIZE: UK: S USA: 9.25

WEIGHT: 3.2 grams

HALLMARKS: Plat (denotes platinum) 18 (18ct Gold) together with Makers initials: BK & T

CONDITION: Good

DATE: Art Deco (1920 to 1935)

PRODUCT CODE: RG520


*We can provide resizing of this ring (depending on the size needed). Please send your request via our contact form or email us directly with your enquiry. 



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Any antique boxes shown in product images are for display purposes only. Unless otherwise stated, the item will be sent in our own branded leatherette and velvet box. All items are antique, vintage, and/or pre-loved and will naturally have signs of wear and tear commensurate with age. Please note that images have been enlarged to show detail. All measurements are listed in the item description.