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ID #SA1210198
FOR SALE
£1,130
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Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring
For sale by The Chelsea Bijouterie Ltd
for sale €1,322     $1,435
£1,130

The Chelsea Bijouterie Ltd

Sellingantiques Verified Since Nov 2018
Browse dealers 171 items
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Id #SA1210198
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Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

1940 - 1960
Description

A beautifully balanced and enduringly elegant vintage diamond trilogy ring, dating to the 1950s and crafted in the classic manner with a platinum crown and warm 18ct yellow gold shank.

Set with three bright brilliant cut diamonds, this ring captures the timeless symbolism of past, present and future—making it a deeply meaningful choice for an engagement or special anniversary. The stones are perfectly arranged across the finger, each claw set to allow maximum light to pass through, creating a lively and continuous sparkle.

The platinum setting enhances the brightness of the diamonds, while the softly tapered yellow gold band provides a graceful and comfortable fit. Understated yet refined, this is a piece that will never fall out of fashion.

A true mid-century classic, elegant on the hand and effortlessly wearable every day.

Details

Three brilliant cut diamonds

Total diamond weight: approx. 0.40 carat

Diamond colour: H

Diamond clarity: VS1

Centre diamond: approx. 3.8mm

Outer diamonds: approx. 3.5mm each

Total head width: 12.5mm

Height off finger: 5mm

Setting: platinum crown

Shank: tests as 18ct yellow gold

Weight: 2.5 grams

Ring size: L (UK) – can be resized

Date: circa 1950s (mid 20th century)

Condition: excellent original condition

Presentation box included

Our ref: 2614

Please visit our website to view our full collection:

https://www.the-chelsea-bijouterie.com

Payment:

By Debit/ Credit Card, PayPal or Bank Transfer

Shipping:

We post worldwide free of charge

All items are sent fully insured, tracked and signed for.

Terms of Sale:

We are totally committed to customer satisfaction. We take great care to give accurate and detailed descriptions accompanied by high definition photos. If you are not entirely happy with your purchase we will gladly offer you a full refund. Please return within 14 days of receipt of your purchase.

About Us:

We have years of knowledge and experience in dealing in antiques and antique & designer jewellery. We are committed to giving exceptional customer service. The Chelsea Bijouterie aims to offer beautiful and interesting items at affordable prices.

Declaration

The Chelsea Bijouterie Ltd has dated this Diamond Trilogy Engagement Ring to the 1950s.

Reference Numbers
Sellingantiques Reference
SA1210198
Dealers Internal Reference
2614
Description
A beautifully balanced and enduringly elegant vintage diamond trilogy ring, dating to the 1950s and crafted in the classic manner with a platinum crown and warm 18ct yellow gold shank.
“
Set with three bright brilliant cut diamonds, this ring captures the timeless symbolism of past, present and future—making it a deeply meaningful choice for an engagement or special anniversary.
The Chelsea Bijouterie Ltd

The stones are perfectly arranged across the finger, each claw set to allow maximum light to pass through, creating a lively and continuous sparkle.

fig 1. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 1. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

The platinum setting enhances the brightness of the diamonds, while the softly tapered yellow gold band provides a graceful and comfortable fit. Understated yet refined, this is a piece that will never fall out of fashion.

fig 2. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 2. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

A true mid-century classic, elegant on the hand and effortlessly wearable every day.

Details

Three brilliant cut diamonds

Total diamond weight: approx. 0.40 carat

Diamond colour: H

Diamond clarity: VS1

Centre diamond: approx. 3.8mm

fig 3. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 3. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

Outer diamonds: approx. 3.5mm each

Total head width: 12.5mm

Height off finger: 5mm

Setting: platinum crown

Shank: tests as 18ct yellow gold

Weight: 2.5 grams

Ring size: L (UK) – can be resized

Date: circa 1950s (mid 20th century)

fig 4. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 4. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

Condition: excellent original condition

Presentation box included

Our ref: 2614

Please visit our website to view our full collection:

https://www.the-chelsea-bijouterie.com

Payment:

By Debit/ Credit Card, PayPal or Bank Transfer

fig 5. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 5. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

Shipping:

We post worldwide free of charge

All items are sent fully insured, tracked and signed for.

Terms of Sale:

We are totally committed to customer satisfaction. We take great care to give accurate and detailed descriptions accompanied by high definition photos. If you are not entirely happy with your purchase we will gladly offer you a full refund. Please return within 14 days of receipt of your purchase.

fig 6. A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
fig 6. Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

About Us:

We have years of knowledge and experience in dealing in antiques and antique & designer jewellery. We are committed to giving exceptional customer service. The Chelsea Bijouterie aims to offer beautiful and interesting items at affordable prices.

Date of Manufacture

The Chelsea Bijouterie Ltd has dated this Diamond Trilogy Engagement Ring to the 1950s.

Reference Numbers
Sellingantiques Ref
SA1210198
Dealers Internal Ref
2614
The Chelsea Bijouterie Ltd
Sellingantiques verified Since Nov 2018
Dealer Profile

You can view the stock and full dealer information on the The Chelsea Bijouterie Ltd Profile Page

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A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
1 / 8
Archive I A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.

Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring

Archive II A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View II
Archive III A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View III
Archive IV A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View IV
Archive V A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View V
Archive VI A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View VI
Archive VII A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View VII
Archive VIII A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band. View VIII
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The Chelsea Bijouterie Ltd
Telephone 07949 058 591
Location
85 Great Portland Street
London
W1W 7LT
United Kingdom
Dealer Profile Page sellingantiques.co.uk/thechelseabijouterie
Verified Since Nov 2018
Items For Sale 171
Items Sold 883
The Chelsea Bijouterie Ltd
Verified Since Nov 2018
View Dealer Info
Location: 85 Great Portland Street, London, W1W 7LT, United Kingdom
Profile: sellingantiques.co.uk/thechelseabijouterie
Verified
Nov 2018
For Sale
171
Sold
883
A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
Vintage Diamond Trilogy Ring 18ct Gold Diamond Three Stone Engagement Ring
Ref: SA1210198
A three-stone round diamond trilogy ring set in white metal claw mounts on an 18ct yellow gold band.
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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1940 - 1960
  • StyleMid-Century
  • Material18ct Yellow Gold, Diamond
  • ColourYellow Gold
  • MotifsThree-stone setting, Claw settings, Round brilliant cut diamonds

This vintage mid-century trilogy ring dates to 1950 and displays three round brilliant cut diamonds mounted in individual claw settings. The piece combines a white platinum crown with a warm yellow gold shank that tapers toward the shoulders. The central diamond measures approximately 3.8 mm, flanked by two outer diamonds measuring approximately 3.5 mm each, with a total head width of 12.5 mm. Designed for daily wear as an engagement ring or a significant anniversary token, the ring sits comfortably on the hand and works well for formal or casual occasions. The open claw settings let light pass through the stones from multiple angles, highlighting the natural brilliance of the diamonds.

FAQs

A trilogy ring features three gemstones arranged horizontally in a row, traditionally symbolising a couples past, present, and future together.

Vintage trilogy rings are typically constructed using 18ct yellow gold or platinum, featuring prong or bezel settings designed to secure brilliant cut diamonds.

Authentic pieces can be verified by examining official metal purity hallmarks inside the band, evaluating stone cut styles, and checking structural wear patterns on the settings.

A classic diamond trilogy ring pairs seamlessly with a plain gold wedding band or can be layered alongside narrow diamond eternity bands for a modern stacked aesthetic.

Clean the piece gently using warm water, mild soap, and a soft-bristled brush, and have the settings inspected regularly by a professional jeweller to ensure stone security.
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