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Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring
Sold by The Chelsea Bijouterie Ltd
sold SA836749
Sorry, but this item has been sold.

The Chelsea Bijouterie Ltd

Sellingantiques Verified Since Nov 2018
Browse dealers 175 items
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Id #SA836749
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Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring

1920 - 1940
Sold 27 March 2025 · The Chelsea Bijouterie Ltd
This “Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring” found a buyer.

It was listed by The Chelsea Bijouterie 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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Classic Solitaire Ask the dealer for something similar
Description

Gorgeous 18 carat white gold & platinum diamond solitaire ring

The beautiful old brilliant cut diamond is in a simple eight claw platinum mount

It is complemented by three pretty brilliant cut access diamonds to each shoulder set in platinum

This fabulous ring looks stunning when worn

Diamond 5.7mm circa 0.75 carat

Colour G/H, Clarity VSI

6 x 1.5mm diamonds. Total diamond weight 0.85 carat

Stamped 18CT PLAT

Also a personal inscription date 1.1.40 (could easily be removes)

It weighs 2.5 grams.

The diamond stands 5.5 mm proud of the shank.

The size is O 3/4 (UK) 7 3/4 (USA) It would easily re size

It comes in the presentation box illustrated.

It is in excellent condition

Shipping:

We post 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.

Date of Manufacture

The Chelsea Bijouterie Ltd has dated this Antique Diamond Ring to the 1930s.

Reference Numbers
Sellingantiques Reference
SA836749
Dealers Internal Reference
21215
Description
Gorgeous 18 carat white gold & platinum diamond solitaire ring

The beautiful old brilliant cut diamond is in a simple eight claw platinum mount

It is complemented by three pretty brilliant cut access diamonds to each shoulder set in platinum

fig 1. An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
fig 1. Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring

This fabulous ring looks stunning when worn

Diamond 5.7mm circa 0.75 carat

Colour G/H, Clarity VSI

6 x 1.5mm diamonds. Total diamond weight 0.85 carat

Stamped 18CT PLAT

Also a personal inscription date 1.1.40 (could easily be removes)

fig 2. An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
fig 2. Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring

It weighs 2.5 grams.

The diamond stands 5.5 mm proud of the shank.

The size is O 3/4 (UK) 7 3/4 (USA) It would easily re size

It comes in the presentation box illustrated.

It is in excellent condition

Shipping:

fig 3. An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
fig 3. Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring

We post 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 4. An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
fig 4. Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond 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 Antique Diamond Ring to the 1930s.

Reference Numbers
Sellingantiques Ref
SA836749
Dealers Internal Ref
21215
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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An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. SOLD6+ MONTHS AGO
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Archive I An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. SOLD6+ MONTHS AGO

Antique Diamond Solitaire Ring 18ct Gold & Plat Vintage 0.85ct Diamond Engagement Ring

Archive II An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View II
Archive III An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View III
Archive IV An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View IV
Archive V An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View V
Archive VI An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View VI
Archive VII An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View VII
Archive VIII An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View VIII
Archive IX An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View IX
Archive X An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View X
Archive XI An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View XI
Archive XII An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View XII
Archive XIII An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View XIII
Archive XIV An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders. View XIV
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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 175
Items Sold 890
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
175
Sold
890
An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
Antique Diamond Solitaire Ring 18ct Gold & PLAT Vintage 0.85ct Diamond Engagement Ring
Ref: SA836749
An antique diamond solitaire ring featuring a central round-cut diamond set in a platinum head with gold and platinum shoulders.
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Every single antique dealer on our platform is individually approved by our internal team. We verify their professional trade history, ethical standards, and photographic quality to ensure a secure, high-standard buying environment. Upon joining, every dealer agrees to a strict 9-point code of conduct. While issues can occasionally arise, our dealers typically resolve them swiftly and directly with the buyer. In fact, since our founding in 2002, Sellingantiques has only had to step in to help resolve an issue on roughly five occasions—a true testament to the quality of our dealers and their dedication to your happiness.

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Our dealers are highly experienced in packing and shipping fragile, high-value antiques. Because you are in direct contact with the dealer, you will be able to easily go through all available shipping and insurance options together to ensure your item arrives safely.

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1920 - 1940
  • StyleArt Deco / Edwardian
  • Material18ct Gold, Platinum, Diamond
  • ColourSilver and Gold
  • MotifsSolitaire setting, Milgrain edging, Shoulder diamonds, Tapered band

FAQs

Antique diamond rings typically feature hand-cut gemstones such as old European or old mine cuts, set in metals like yellow gold, white gold, or platinum, often incorporating intricate hand-engraved details or milgrain edging characteristic of periods such as the Edwardian era or Art Deco movement.

Traditional materials include high-carat gold, platinum (which gained popularity in jewellery manufacturing during the late 19th and early 20th centuries due to its strength and bright finish), and natural diamonds mined and cut by hand.

Authentic pieces often exhibit hallmarks indicating the metal purity and makers marks, asymmetrical hand-cut facets on the diamonds, and signs of age-related wear such as minor patina on the metal surface.

An antique ring can be worn as a standalone statement piece or paired with contemporary minimalist bands to create a balanced, eclectic contrast that highlights the historic craftsmanship.

Antique rings should be stored individually in soft pouches to prevent scratching, cleaned gently with warm soapy water and a soft brush, and inspected periodically by a professional jeweller to ensure the settings remain secure.
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