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18ct Gold Art Deco Diamond Bypass Ring (0.30ct)- Art Deco Diamond Trilogy Ring c.1920

SKU: 1829
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Crafted in fine quality 18ct Yellow Gold & Platinum, this gorgeous Art Deco Diamond ring is simply stunning! As you can see it's just as beautiful today as it would have been nearly a century ago, and offered in immaculate condition.

The ring is set with a three twinkling Old cut Diamonds totalling 0.30ct in a pretty twist style setting and has the most delicate Platinum millegrain details. 

It's truly is a unique piece, and would make a gorgeous engagement ring or promise ring to any blushing bride! 

The ring has an elegant 1.5-2mm band that tapers gently toward the front, highlighting those gorgeous sparkling bright Diamonds.

This ring is really a gorgeous piece of history that's perfect for any lady who wants to bring a little Art Deco grace and glamour to her everyday life. It's comfortable to wear and has a flat profile so it's not only a beauty but she's practical too!

Item Details:

ERA:  Art Deco (1920-1930)

RING SIZE: UK Size P 1/2 / US Size 7 3/4
The central Diamond is 3.5mm in diameter
The Diamonds on each side are 2.5mm in diameter
The band is 2mm wide at the back
Weight: 2g
Total Diamond Weight: 0.30ct (Assessed mounted)
The Diamonds consist of two rare old European cut Diamonds and one old round cut.
Resizing available on request - just send us a message to enquire!

MATERIALS:  18ct Yellow Gold, Platinum, Diamond

HALLMARKS:  None present, tested as 18ct Yellow Gold & platinum.


EXCELLENT:  This lovely Art Deco Diamond trilogy ring is in excellent condition throughout. The Diamonds are excellent, with no scratches, chips or abrasions and the Gold setting is also perfect. It still has a high polish, and the dainty millegraine Platinum details are pristine! We simply can't fault it! Beautiful, elegant, practical and comfortable... if you're looking for the perfect Art Deco Diamond engagement ring this may be "The One" for you!


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!