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Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920
Sold by Gatsby Jewellery Ltd
sold SA1085827
Sorry, but this item has been sold.
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
Browse dealers 276 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 #SA1085827
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Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920

1900 - 1920
Sold 22 March 2025 · Gatsby Jewellery Ltd
This “Art Deco 0.62 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 diamond engagement ring of real class and refinement. The old mine cut diamond in the centre – graded by De Beers as I colour, SI2 clarity – is white, bright, and full of fire. The stone is secured in an eight claw coronet collet which sits nice and low to the finger. Six (three each side) old cut diamond are set in each shoulder, leading to a slim and slightly knife-edge shank. All in platinum. Currently UK size K, US size 5 1/8 (complimentary sizing available).

Accompanied by a De Beers Institute of Diamonds grading report (#010000277505). A unique number has been inscribed on this diamond providing utmost security.

Cut – Old mine cut (and old mine cuts in the shoulders).

Colour – I (the diamonds in the shoulders range from H to I).

Clarity – SI2 (this diamonds in the shoulders are VS2 to SI1).

Carat – 0.62 (with a further approximate 0.12 carat in the shoulders).

Circa – 1920.

Measurements – The centre diamond is 5.48 x 4.94mm. Sits 4.3mm from the finger.

Size – K (UK) or 5 1/8 (US). Complimentary sizing is available, can go up or down.

Weight – 2.26 grams.

Metal – Platinum. Tested.

Date of Manufacture

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

Physical Dimensions
Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Reference Numbers
Sellingantiques Reference
SA1085827
Dealers Internal Reference
312812S249
Description
An antique diamond engagement ring of real class and refinement.
“
The old mine cut diamond in the centre – graded by De Beers as I colour, SI2 clarity – is white, bright, and full of fire.
Gatsby Jewellery Ltd

The stone is secured in an eight claw coronet collet which sits nice and low to the finger. Six (three each side) old cut diamond are set in each shoulder, leading to a slim and slightly knife-edge shank. All in platinum. Currently UK size K, US size 5 1/8 (complimentary sizing available).

fig 1. An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders.
fig 1. Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920

Accompanied by a De Beers Institute of Diamonds grading report (#010000277505). A unique number has been inscribed on this diamond providing utmost security.

Cut – Old mine cut (and old mine cuts in the shoulders).

fig 2. An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders.
fig 2. Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920

Colour – I (the diamonds in the shoulders range from H to I).

Clarity – SI2 (this diamonds in the shoulders are VS2 to SI1).

Carat – 0.62 (with a further approximate 0.12 carat in the shoulders).

Circa – 1920.

fig 3. An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders.
fig 3. Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920

Measurements – The centre diamond is 5.48 x 4.94mm. Sits 4.3mm from the finger.

Size – K (UK) or 5 1/8 (US). Complimentary sizing is available, can go up or down.

Weight – 2.26 grams.

Metal – Platinum. Tested.

Date of Manufacture

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

Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Reference Numbers
Sellingantiques Ref
SA1085827
Dealers Internal Ref
312812S249
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 ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. SOLD6+ MONTHS AGO
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Archive I An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. SOLD6+ MONTHS AGO

Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, Circa 1920

Archive II An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View II
Archive III An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View III
Archive IV An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View IV
Archive V An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View V
Archive VI An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View VI
Archive VII An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View VII
Archive VIII An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View VIII
Archive IX An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View IX
Archive X An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View X
Archive XI An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders. View XI
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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 276
Items Sold 2,983
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
276
Sold
2,983
An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders.
Art Deco 0.62 Carat Old Cut Diamond Engagement Ring, circa 1920
Ref: SA1085827
An Art Deco platinum ring featuring a central old cut diamond flanked by smaller accent stones along the shoulders.
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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 Glamour
  • MaterialPlatinum, Diamond
  • ColourSilver
  • MotifsGeometric shoulders, Old cut diamonds, Millegrain detailing
  • SizeH 30 cm (12 in) x W 25 cm (10 in) x D 5 cm (2 in)

FAQs

Art Deco jewellery, emerging in the 1920s, is characterised by geometric shapes, stylised symmetry, linear patterns, and a heavy influence from modern industrial design and ancient civilisations.

Jewellers during the 1920s predominantly utilised platinum for its strength and ability to hold delicate settings, alongside white gold, paired with old-cut diamonds and calibrated coloured gemstones.

Authentic pieces often exhibit hand-cut diamonds such as old European or miner cuts, characteristic millegrain edging, hand-engraved details, and period-appropriate metal hallmarks or acid tests for platinum.

An antique diamond ring pairs well with contemporary minimalist attire to let the historic craftsmanship stand out, or can be stacked with modern geometric bands for an eclectic look.

Vintage rings should be cleaned gently using warm soapy water and a soft brush, avoiding harsh ultrasonic cleaners, and inspected periodically by a professional jeweller to ensure the antique settings remain secure.
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