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ID #SA1178576
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0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum
Sold by Gatsby Jewellery Ltd
sold SA1178576
Sorry, but this item has been sold.
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
Browse dealers 263 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 #SA1178576
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0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum

1920 - 1940
Sold 9 February 2026 · Gatsby Jewellery Ltd
This “0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum” 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

A bright old European cut diamond from the early to middle part of the last century set in a contemporary platinum mount. The diamond is secured in a six claw collet within a scrolling gallery, and is framed by six (three each side) natural step cut emeralds to a slim D-shaped shank. A stunning design, beautifully executed.

Accompanied by an independent jewellery report from WGI.

Cut: Old European cut diamond and square step cut emeralds.

Colour: The diamond is I(i).

Clarity: The diamond is SI2 (clean to the naked eye). The emeralds are moderately included.

Carat: The diamond is 0.89 carat. The total approximate emerald weight is 0.15 carat.

Circa: The diamond was cut and polished circa 1930. The setting is new.

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

Measurements: The diamond is 5.94 x 5.95mm and sits 5.7mm from the finger.

Weight: 3.22 grams.

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

Video: To view videos of this ring recorded in daylight, please either contact us or copy / paste the following link into your browser: https://gatsbyjewellery.co.uk/products/0-89-carat-old-cut-diamond-emerald-engagement-ring-platinum

Item # 3121113S259

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

Gatsby Jewellery Ltd has dated this Platinum Diamond Emerald Ring to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1178576
Dealers Internal Reference
3121113S259
Description
A bright old European cut diamond from the early to middle part of the last century set in a contemporary platinum mount.
“
The diamond is secured in a six claw collet within a scrolling gallery, and is framed by six (three each side) natural step cut emeralds to a slim D-shaped shank.
Gatsby Jewellery Ltd

A stunning design, beautifully executed.

fig 1. A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
fig 1. 0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum

Accompanied by an independent jewellery report from WGI.

Cut: Old European cut diamond and square step cut emeralds.

Colour: The diamond is I(i).

Clarity: The diamond is SI2 (clean to the naked eye). The emeralds are moderately included.

fig 2. A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
fig 2. 0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum

Carat: The diamond is 0.89 carat. The total approximate emerald weight is 0.15 carat.

Circa: The diamond was cut and polished circa 1930. The setting is new.

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

fig 3. A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
fig 3. 0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum

Measurements: The diamond is 5.94 x 5.95mm and sits 5.7mm from the finger.

Weight: 3.22 grams.

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

Video: To view videos of this ring recorded in daylight, please either contact us or copy / paste the following link into your browser: https://gatsbyjewellery.co.uk/products/0-89-carat-old-cut-diamond-emerald-engagement-ring-platinum

Item # 3121113S259

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

Gatsby Jewellery Ltd has dated this Platinum Diamond Emerald Ring to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1178576
Dealers Internal Ref
3121113S259
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 platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. SOLD6+ MONTHS AGO
1 / 10
Archive I A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. SOLD6+ MONTHS AGO

0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum

Archive II A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View II
Archive III A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View III
Archive IV Scale Reference for A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
Archive V A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View V
Archive VI A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View VI
Archive VII A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View VII
Archive VIII A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View VIII
Archive IX A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View IX
Archive X A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders. View X
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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 263
Items Sold 2,971
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
263
Sold
2,971
A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
0.89 Carat Old Cut Diamond & Emerald Engagement Ring, Platinum
Ref: SA1178576
A platinum engagement ring featuring a central old cut diamond flanked by channel-set square emeralds along the shoulders.
Detail View 1
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Scale Reference
Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1920 - 1940
  • StyleArt Deco
  • MaterialPlatinum, Diamond, Emerald
  • ColourSilver and Green
  • MotifsOld cut diamond, Square cut emeralds, Millegrain detailing
  • SizeH 30 cm (12 in) x W 25 cm (10 in) x D 5 cm (2 in)

FAQs

Art Deco jewellery, prominent from the 1920s to the 1930s, is characterised by geometric precision, symmetry, architectural lines, and high-contrast gemstone combinations such as diamonds paired with emeralds, rubies, or sapphires.

These pieces traditionally utilise platinum for its strength and bright white lustre, which allowed jewellers to create delicate yet secure settings for old cut diamonds and calibre-cut coloured gemstones.

Authentic period pieces often feature hand-cut diamonds with characteristic irregular facets and open culets, alongside natural emeralds showing characteristic inclusions, set within handmade or early cast platinum mountings bearing period hallmarks.

An antique engagement ring can be paired with a simple contemporary platinum band to highlight its historical character, or layered alongside mixed-metal stacking rings for a curated, eclectic aesthetic.

Maintain the piece by cleaning it gently with warm soapy water and a soft brush, avoiding harsh ultrasonic cleaners for emeralds, and having the setting inspected annually by a professional jeweller to ensure stone security.
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