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ID #SA1239754
FOR SALE
£4,000
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Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920
For sale by Gatsby Jewellery Ltd
for sale €4,680     $5,080
£4,000
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
Browse dealers 266 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 #SA1239754
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Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920

1900 - 1920
Description

An early Art Deco three stone ring featuring a natural and unheated ruby between a pair of old mine cut diamonds. The ruby displays rich raspberry red with purplish pink undertones, and is claw set in 18k yellow gold. The diamonds - weighing 0.45 carat and 0.40 carat - add bags of fire and brilliance, and lead to a slim 18k yellow gold shank.

Accompanied by a ruby report from The Gem & Pearl Laboratory stating the ruby shows no indications of heating.

Cut:  Cushion cut ruby and old mine cut diamonds.

Colour:  The diamonds are I and J.

Clarity:  The ruby is lightly included. The diamonds are VS1 and SI1.

Carat:  The ruby is 0.64 carat. The diamonds are 0.45 carat and 0.40 carat.

Circa:  1920.

Size:  P (UK) or 7 1/2 (US). Free sizing available.

Measurements:  The ruby is 6.2 x 5.2mm. From the outer edge of one diamond to the other is 15.25mm and sits 4.8mm from the finger.

Weight:  3.01 grams.

Metal:  18k yellow gold and 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 the following link into browser: https://gatsbyjewellery.co.uk/products/antique-0-64-carat-unheated-ruby-0-85-carat-diamond-ring-circa-1920

Item # 7141014S245

Declaration

Gatsby Jewellery Ltd has dated this Antique Ruby Diamond Ring to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1239754
Dealers Internal Reference
7141014S245
Description
An early Art Deco three stone ring featuring a natural and unheated ruby between a pair of old mine cut diamonds.
“
The ruby displays rich raspberry red with purplish pink undertones, and is claw set in 18k yellow gold.
Gatsby Jewellery Ltd

The diamonds - weighing 0.45 carat and 0.40 carat - add bags of fire and brilliance, and lead to a slim 18k yellow gold shank.

fig 1. An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
fig 1. Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920

Accompanied by a ruby report from The Gem & Pearl Laboratory stating the ruby shows no indications of heating.

Cut:  Cushion cut ruby and old mine cut diamonds.

Colour:  The diamonds are I and J.

Clarity:  The ruby is lightly included. The diamonds are VS1 and SI1.

fig 2. An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
fig 2. Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920

Carat:  The ruby is 0.64 carat. The diamonds are 0.45 carat and 0.40 carat.

Circa:  1920.

Size:  P (UK) or 7 1/2 (US). Free sizing available.

Measurements:  The ruby is 6.2 x 5.2mm. From the outer edge of one diamond to the other is 15.25mm and sits 4.8mm from the finger.

fig 3. An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
fig 3. Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920

Weight:  3.01 grams.

Metal:  18k yellow gold and 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 the following link into browser: https://gatsbyjewellery.co.uk/products/antique-0-64-carat-unheated-ruby-0-85-carat-diamond-ring-circa-1920

Item # 7141014S245

Date of Manufacture

Gatsby Jewellery Ltd has dated this Antique Ruby Diamond Ring to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1239754
Dealers Internal Ref
7141014S245
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 antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
1 / 9
Archive I An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.

Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, Circa 1920

Archive II An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View II
Archive III An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View III
Archive IV An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View IV
Archive V An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View V
Archive VI An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View VI
Archive VII An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View VII
Archive VIII An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. View VIII
Archive IX An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings. 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 266
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
266
Sold
2,976
An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
Antique 0.64 Carat Unheated Ruby & 0.85 Carat Diamond Ring, circa 1920
Ref: SA1239754
An antique yellow gold trilogy ring featuring a central cushion-cut red ruby flanked by two old-cut diamonds in claw settings.
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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialGold, Ruby, Diamond
  • ColourGold and Red
  • MotifsTrilogy setting, Cushion cut, Claw setting, Yellow gold band

An early Art Deco three stone ring from circa 1920, designed in an 18k yellow gold and platinum setting. The composition centres on a cushion cut natural ruby displaying rich raspberry red with purplish pink undertones, flanked by a pair of old mine cut diamonds in claw settings. The slim 18k yellow gold band leads to the trilogy arrangement, featuring a central ruby measuring 6.2 x 5.2mm alongside two sparkling diamonds. From the outer edge of one diamond to the other measures 15.25mm, and the setting sits 4.8mm from the finger. This piece functions as a dress ring suitable for daily wear on the hand. The warm tones of the yellow gold combine with the vibrant red of the ruby and the brilliance of the diamonds, creating a classic vintage look. The slender shank provides a comfortable fit, while the secure claw settings hold each gemstone firmly in place. It brings a touch of period elegance to any collection of fine jewellery, pairing easily with other gold accessories.

FAQs

Jewellery from the 1920s often features geometric balance, clean lines, and high-contrast gemstone pairings. The three-stone or trilogy design was prominent during this era, commonly combining vibrant coloured gemstones like rubies with old European or cushion-cut diamonds.

Trilogy rings from this era were primarily constructed using 18 carat yellow gold, platinum, or a combination of both. Settings typically featured hand-carved claw or collet settings to hold natural rubies, sapphires, emeralds, and diamonds.

Authentic pieces usually exhibit period-appropriate gem cuts, such as old European or mine cuts, and display signs of hand-finishing on the mount. Additionally, hallmarking inside the band and gemological verification of unheated gemstones assist in confirming age and origin.

An antique trilogy ring serves as a understated statement piece for daily wear or formal occasions. The classic combination of yellow gold and red corundum pairs effectively alongside modern minimalist jewellery or complementary vintage bands.

Clean gently using warm water, mild soap, and a soft-bristled brush, avoiding harsh chemicals or ultrasonic cleaners. Regular inspection by a professional jeweller ensures that the claw settings remain secure over time.
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