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ID #SA1121722
FOR SALE
£5,800
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Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, Circa 1950
For sale by Gatsby Jewellery Ltd
for sale €6,786     $7,366
£5,800
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
Browse dealers 261 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 #SA1121722
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Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, Circa 1950

1940 - 1960
Description

A classic vintage diamond engagement ring. The diamond in the centre - graded by IGI as H colour, VS1 clarity - is dazzlingly white and internally clean. The stone is set in a platinum eight-claw rex collet which sits on a slim and tapering 18k white gold shank.

Although IGI have described the cut as Round Brilliant, the diamond has many characteristics of an Old European Cut - slightly smaller table, cut culet, burnished girdle - making this a transitional cut (a very rare cut that bridged old European cut and round brilliant) rather than a modern round brilliant.

Accompanied by a diamond report from IGI.

Cut:? Transitional cut.

Colour:? H.

Clarity:? VS1.

Carat:? 1.00.

Circa:? 1950.

Size:? K 1/2 (UK) or 5 3/8 (US). Free sizing available.

Measurements:? The diamond is 6.57 x 6.67mm and sits 5.3mm from the finger.

Weight:? 1.95 grams.

Metal:? The band is 18k white gold. The diamond is set in platinum. Tested with a Niton DXL Precious Metal Analyzer.

Item # 312113S270

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

Gatsby Jewellery Ltd has dated this Vintage Diamond Solitaire Ring to the 1950s.

Reference Numbers
Sellingantiques Reference
SA1121722
Dealers Internal Reference
312113S270
Description
A classic vintage diamond engagement ring.
“
The diamond in the centre - graded by IGI as H colour, VS1 clarity - is dazzlingly white and internally clean.
Gatsby Jewellery Ltd

The stone is set in a platinum eight-claw rex collet which sits on a slim and tapering 18k white gold shank.

fig 1. A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.
fig 1. Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, Circa 1950

Although IGI have described the cut as Round Brilliant, the diamond has many characteristics of an Old European Cut - slightly smaller table, cut culet, burnished girdle - making this a transitional cut (a very rare cut that bridged old European cut and round brilliant) rather than a modern round brilliant.

fig 2. A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.
fig 2. Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, Circa 1950

Accompanied by a diamond report from IGI.

Cut:? Transitional cut.

Colour:? H.

Clarity:? VS1.

Carat:? 1.00.

Circa:? 1950.

Size:? K 1/2 (UK) or 5 3/8 (US). Free sizing available.

Measurements:? The diamond is 6.57 x 6.67mm and sits 5.3mm from the finger.

Weight:? 1.95 grams.

Metal:? The band is 18k white gold. The diamond is set in platinum. Tested with a Niton DXL Precious Metal Analyzer.

Item # 312113S270

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

Gatsby Jewellery Ltd has dated this Vintage Diamond Solitaire Ring to the 1950s.

Reference Numbers
Sellingantiques Ref
SA1121722
Dealers Internal Ref
312113S270
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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A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.
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Archive I A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.

Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, Circa 1950

Archive II A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View II
Archive III A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View III
Archive IV A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View IV
Archive V A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View V
Archive VI A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View VI
Archive VII A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View VII
Archive VIII A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. View VIII
Archive IX A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band. 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 261
Items Sold 2,966
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
261
Sold
2,966
A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.
Mid Century 1.00 Carat Transitional Cut Diamond Engagement Ring, circa 1950
Ref: SA1121722
A mid-century platinum engagement ring featuring a central round transitional cut diamond secured in a multi-claw setting on a slender band.
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Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1940 - 1960
  • StyleMid-Century
  • MaterialPlatinum, Diamond
  • ColourSilver and Clear
  • MotifsTransitional cut diamond, Multi-prong claw setting, Slender tapered band
  • SizeH 30 cm (12 in) x W 25 cm (10 in) x D 5 cm (2 in)

This mid-century engagement ring dates from circa 1950 in the mid-century style. The piece is fashioned from platinum and 18k white gold in silver and clear colours, featuring a central round transitional cut diamond secured in an eight-claw rex collet setting on a slender tapered band. The round central diamond is graded H colour and VS1 clarity, accompanied by an IGI diamond report, showcasing a smaller table, cut culet and burnished girdle. The mount displays a multi-prong claw setting and a slim tapering shank. The item measures 30 cm high, 25 cm wide, and 5 cm deep. This ring suits daily wear on the hand as an engagement ring or special occasion piece, adding a classic touch to formal attire or evening wear. The combination of platinum and white gold provides a durable mount for the one-carat central stone, while the slim band ensures a comfortable fit on the finger. The design brings mid-century modern character to modern jewellery collections, pairing easily with other silver-coloured metal pieces or worn alone as a statement ring.

FAQs

Transitional cut diamonds were produced roughly between the 1920s and 1950s, bridging the design gap between Old European cuts and modern Round Brilliants. They feature a lower crown, larger table, and smaller culet than older cuts, offering balanced light refraction in a classic setting.

Mid-century solitaire rings were predominantly constructed using platinum or white gold to complement the bright white tones of the diamond. Yellow gold bands with platinum head mounts were also popular to combine durability with neutral diamond backdrops.

Authentic pieces from this period often display hand-finished claw settings, geometric under-gallery work, and hallmarks indicating metal purity. Examination under magnification reveals the characteristic faceted proportions of a transitional cut diamond.

A classic solitaire design integrates effortlessly with contemporary metal bands or textured eternity rings. Stacking thin, modern platinum or gold bands alongside a mid-century solitaire creates a balanced, multi-era aesthetic.

Clean the piece gently using warm water, mild detergent, and a soft-bristled brush to remove accumulation behind the setting. Regular professional inspections ensure that the prongs remain tight and structurally sound over time.
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