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Art Deco 18ct Gold Onyx and Diamond Square Panel Ring (0.15ct)

SKU: 2858
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This is such an unusual Art Deco 18ct Gold Onyx and Diamond square panel ring, with the most beautiful contrast of the jet black Onyx sheen against the gorgeous sparkling Diamond inside which sets it apart from all the rest! 

We think this majestic beauty is a real show stopper, worn as a statement ring with a gorgeous cocktail dress would look oh so chic... or perhaps add some stacker rings for a more boho look?! 

It has such a soft coloured 18ct Gold band that wraps everything together beautifully. The Diamond gives it that luxurious glitter that we all love and desire, with a little sprinkling on the shoulders for that little bit of extra je ne sais quoi! 

Item Details:

ERA:  Art Deco (1920-1939)

RING SIZE: UK Size M 1/2 / US Size 6 1/4
Resizing available on request

MEASUREMENTS: The central Diamond is 3mm. The 2 Diamonds on the shank are 1.75mm each (total approximate carat weight 0.15ct)
The face measures 10mm wide x 10mm tall x 4mm deep.
The band is 1.5mm.
Weight: 2.2g 

MATERIALS:  18ct Gold, Black Onyx, Diamond.

HALLMARKS:  None present, tested as 18ct Gold


EXCELLENT: This Art Deco 18ct Gold Onyx and Diamond square panel ring is in a lovely condition. The striking black Onyx has a smooth finish which has very subtle scratches from wear over the years. The Diamond has an inclusion under the surface that can only be seen under magnification, it is brilliantly bright and wonderfully sparkly, as are the smaller Diamonds on the shoulders. The Gold has a pale complexion and holds the ring face superbly in the gorgeous structural Art Deco style. Ready to be worn straight away if you so desire!


All orders are shipped using DHL express and are securely padded in transit, with full tracking and insurance for your peace of mind. Alternate couriers are available by special request.

  • FREE EXPRESS DELIVERY on all orders worldwide!
  • NEXT-DAY delivery to the UK and EU
  • Delivery to the USA in TWO WORKING DAYS
  • Orders placed by 1pm (GMT) will be dispatched the same day


You can return your item for a full refund for any reason by simply getting in touch to let us know within 14 days of receiving it.


This item will arrive beautifully gift wrapped in a Lillicoco presentation box, tied up with a pink ribbon. You’ll also receive a handwritten information booklet and free polishing cloth too!

Please message us or call +44(0)117 925 4798 if you have any questions!