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ID #SA1123953
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Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, Circa 1920
Sold by Gatsby Jewellery Ltd
sold SA1123953
Sorry, but this item has been sold.
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
Browse dealers 267 items
  • About Us
    Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
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Id #SA1123953
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Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, Circa 1920

1900 - 1920
Sold 30 September 2025 · Gatsby Jewellery Ltd
This “Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, Circa 1920” found a buyer.

It was listed by Gatsby Jewellery Ltd. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.

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Description

An antique engagement ring of elegance and simplicity. The old mine cut diamond is secured in a six claw crown collet which sits atop a slim and flat platinum shank. There is a reason why this style has never gone out of fashion.

Accompanied by a diamond grading report from IGR.

Cut:? Old mine cut.

Colour:? G.

Clarity:? VVS2.

Carat:? 0.75.

Circa:? 1920.

Size:? N (UK) or 6 1/2 (US). Free sizing available.

Measurements:? The diamond is approximately 5 x 5.5mm and sits 5.6mm from the finger.

Weight:? 2.93 grams.

Metal:? Platinum. Tested with a Niton DXL Precious Metal Analyzer.

Item # 311213S298

Physical Dimensions
Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Declaration

Gatsby Jewellery Ltd has dated this Art Deco Diamond Ring to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1123953
Dealers Internal Reference
311213S298
Description
An antique engagement ring of elegance and simplicity.
“
The old mine cut diamond is secured in a six claw crown collet which sits atop a slim and flat platinum shank.
Gatsby Jewellery Ltd

There is a reason why this style has never gone out of fashion.

fig 1. An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background.
fig 1. Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, Circa 1920

Accompanied by a diamond grading report from IGR.

Cut:? Old mine cut.

Colour:? G.

Clarity:? VVS2.

Carat:? 0.75.

Circa:? 1920.

Size:? N (UK) or 6 1/2 (US). Free sizing available.

Measurements:? The diamond is approximately 5 x 5.5mm and sits 5.6mm from the finger.

Weight:? 2.93 grams.

Metal:? Platinum. Tested with a Niton DXL Precious Metal Analyzer.

Item # 311213S298

Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Date of Manufacture

Gatsby Jewellery Ltd has dated this Art Deco Diamond Ring to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1123953
Dealers Internal Ref
311213S298
Gatsby Jewellery Ltd
Gatsby Jewellery Ltd
Sellingantiques verified Since May 2014

Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.

Dealer Profile

You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page

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An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. SOLD6+ MONTHS AGO
1 / 9
Archive I An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. SOLD6+ MONTHS AGO

Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, Circa 1920

Archive II An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View II
Archive III An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View III
Archive IV An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View IV
Archive V An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View V
Archive VI An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View VI
Archive VII An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View VII
Archive VIII An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View VIII
Archive IX An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background. View IX
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Gatsby Jewellery Ltd

Gatsby Jewellery Ltd
Telephone 01992 842 123
Location
Gatsby Jewellery Ltd
3 Coppice Row
Theydon Bois
Essex
CM16 7ES
United Kingdom
Dealer Profile Page sellingantiques.co.uk/gatsby
Verified Since May 2014
Items For Sale 267
Items Sold 2,976
Gatsby Jewellery Ltd
Gatsby Jewellery Ltd
Verified Since May 2014
View Dealer Info
Location: Gatsby Jewellery Ltd, 3 Coppice Row, Theydon Bois, Essex, CM16 7ES, United Kingdom
Profile: sellingantiques.co.uk/gatsby
Verified
May 2014
For Sale
267
Sold
2,976
An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background.
Art Deco 0.75 Carat Old Cut Diamond Engagement Ring, circa 1920
Ref: SA1123953
An Art Deco platinum solitaire ring set with an old cut diamond on a neutral background.
Detail View 1
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Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialPlatinum, Diamond
  • ColourSilver
  • MotifsSolitaire setting, Old cut diamond, Geometric prongs, Plain band
  • SizeH 30 cm (12 in) x W 25 cm (10 in) x D 5 cm (2 in)

FAQs

Art Deco jewellery, prominent during the 1920s and 1930s, is characterised by geometric precision, streamlined silhouettes, and a strong influence from modernist architecture and industrial design.

Pieces from this era frequently utilised platinum, which allowed for delicate yet secure settings, alongside white gold and diamonds featuring old European or old mine cuts.

Authenticity is typically verified by hand-cut facets characteristic of early 20th-century lapidary work, hallmark stamps specific to the period, and construction methods such as hand-fabricated platinum settings.

Vintage pieces can be paired with contemporary minimalist attire to create a striking contrast, or layered with modern fine jewellery for a curated, eclectic aesthetic.

Regular professional inspection of the settings is recommended to ensure the stones remain secure, alongside gentle cleaning with warm soapy water and a soft brush to maintain metal lustre.
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