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Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930
Sold by Gatsby Jewellery Ltd
sold SA1102457
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 #SA1102457
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Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930

1920 - 1940
Sold 28 July 2025 · Gatsby Jewellery Ltd
This “Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930” 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 lovely sapphire and diamond three stone ring set with a natural and unheated sapphire and two natural old cut diamonds. The sapphire, secured by four split claws in a platinum collet, displays a rich, deep blue - the colour of which is emphasised by the whiteness of the old cut diamonds either side. On a slim and tapering platinum shank.

Accompanied by a sapphire report from The Gem & Pearl Laboratory stating the sapphire shows no evidence of heat treatment.

Cut:? Cushion / oval cut sapphire, with old cut diamonds.

Colour:? The diamonds are H.

Clarity:? The sapphire is loupe clean. One diamond is SI1, one is SI2; both are clean to the naked eye.

Carat:? The sapphire is 0.54 carat. Each diamond is approximately 0.20 carat.

Circa:? 1930.

Size:? N (UK) or 6.5 (US). Free sizing available.

Measurements:? The sapphire is 4.7 x 4.5mm. From the edge of one outer diamond to the other is 12.7mm. The ring is 5.15mm at the widest point and sits 4.75mm from the finger.

Weight:? 3.04 grams.

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

Item # 11111012S005

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

Gatsby Jewellery Ltd has dated this Art Deco Sapphire Ring to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1102457
Dealers Internal Reference
11111012S005
Description
A lovely sapphire and diamond three stone ring set with a natural and unheated sapphire and two natural old cut diamonds.
“
The sapphire, secured by four split claws in a platinum collet, displays a rich, deep blue - the colour of which is emphasised by the whiteness of the old cut diamonds either side.
Gatsby Jewellery Ltd

On a slim and tapering platinum shank.

fig 1. An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds.
fig 1. Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930

Accompanied by a sapphire report from The Gem & Pearl Laboratory stating the sapphire shows no evidence of heat treatment.

Cut:? Cushion / oval cut sapphire, with old cut diamonds.

Colour:? The diamonds are H.

fig 2. An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds.
fig 2. Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930

Clarity:? The sapphire is loupe clean. One diamond is SI1, one is SI2; both are clean to the naked eye.

Carat:? The sapphire is 0.54 carat. Each diamond is approximately 0.20 carat.

Circa:? 1930.

Size:? N (UK) or 6.5 (US). Free sizing available.

fig 3. An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds.
fig 3. Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930

Measurements:? The sapphire is 4.7 x 4.5mm. From the edge of one outer diamond to the other is 12.7mm. The ring is 5.15mm at the widest point and sits 4.75mm from the finger.

Weight:? 3.04 grams.

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

Item # 11111012S005

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

Gatsby Jewellery Ltd has dated this Art Deco Sapphire Ring to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1102457
Dealers Internal Ref
11111012S005
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 blue sapphire flanked by two old cut diamonds. SOLD6+ MONTHS AGO
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Archive I An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. SOLD6+ MONTHS AGO

Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, Circa 1930

Archive II An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View II
Archive III An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View III
Archive IV An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View IV
Archive V An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View V
Archive VI An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View VI
Archive VII An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View VII
Archive VIII An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View VIII
Archive IX An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. View IX
Archive X An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds. 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 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 ring featuring a central blue sapphire flanked by two old cut diamonds.
Art Deco 0.54 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, circa 1930
Ref: SA1102457
An Art Deco platinum ring featuring a central blue sapphire flanked by two old cut diamonds.
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
  • Period1920 - 1940
  • StyleArt Deco
  • MaterialPlatinum, Sapphire, Diamond
  • ColourBlue and Silver
  • MotifsTrilogy setting, Claw mount, Old cut stones
  • 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, symmetrical designs, clean lines, and the prominent use of platinum alongside contrasting gemstones.

During the 1930s, jewellers frequently utilised platinum for its strength and bright finish, mounting natural sapphires alongside old European or old mine cut diamonds.

Authentic pieces often exhibit hand-cut gemstones, specific claw or milgrain settings indicative of period craftsmanship, and genuine metal hallmarks appropriate to the era.

An antique ring can be paired with contemporary minimalist bands to highlight its historical details, or stacked with other vintage items for a curated, eclectic aesthetic.

Regular professional inspections ensure the settings remain secure, while routine cleaning with warm soapy water and a soft brush maintains the lustre of the diamonds and sapphire.
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