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ID #SA1155027
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Art Deco Platinum Diamond Solitaire Engagement Ring
Sold by Catherines Antique Jewellery Box
sold SA1155027
Sorry, but this item has been sold.
Catherines Antique Jewellery Box

Catherines Antique Jewellery Box

Sellingantiques Verified Since Nov 2024
Browse dealers 40 items
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    Antique jewellery finds of classic timeless quality and design
Id #SA1155027
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Art Deco Platinum Diamond Solitaire Engagement Ring

1920 - 1940
Sold 11 September 2025 · Catherines Antique Jewellery Box
This “Art Deco Platinum Diamond Solitaire Engagement Ring” found a buyer.

It was listed by Catherines Antique Jewellery Box. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.

See more rings for sale Ask the dealer for something similar
Description

Pretty Art Deco Platinum Diamond Solitaire Engagement Ring 0.50ct total. This superb quality single stone ring has a very bright white old European cut diamond of 5.2mm x 5.2mm diamond of 0.50ct which is a really good quality white diamond estimated colour H-I, estimated clarity approx. SI. The bright diamond sparkles so beautifully and is set into 18ct gold band. This ring is unmarked but tested for platinum and dates to the art deco period 1920s /1930s. This ring would make a wonderful engagement ring with plenty of wow factor and a timeless feel of antique cuts. The stones are all set in a strong and protective platinum setting. The ring is in excellent condition for its age, the shank is in thick and in very good condition and not worn, there are no chips, nibbles or cracks to the stone. Size UK M and U.S Size 6 the total weight is 2.2g.

Please Check Sizes And Weights As JEWELLERY IMAGES ARE ENLARGED. Dark areas are reflections on the gold.

BUY WITH CONFIDENCE: I try to accurately describe my items. I never knowingly mis-sell any item, so please read the description carefully. All items are checked by a professional Jeweller for authenticity; however no certificates are provided. If for any reason the item is found not to be genuine or as described a full refund will be given. So please buy with confidence.

Your jewellery will come in a modern gift box and not necessarily the one in the photograph.

Please also note that Antique and Vintage items will show some signs of wear commensurate with age.

Returns are accepted however buyer must pay return postage.

Finally - by purchasing a Used /Vintage/ Antique ring you are recycling a beautiful piece of jewellery and gemstone. In buying a ring which has been in circulation for this long is the most environmentally ethical way to purchase jewellery. Purchasing antique jewellery allows you to both support smaller local businesses and but encouraging the reuse of the vast amount of timeless jewels that are already in circulation and reduces the demand for further stripping of our planets resources.

Declaration

Catherines Antique Jewellery Box has dated this Art Deco Diamond Ring to the 1940s.

Reference Numbers
Sellingantiques Reference
SA1155027
Dealers Internal Reference
CT629
Description
Pretty Art Deco Platinum Diamond Solitaire Engagement Ring 0.50ct total. This superb quality single stone ring has a very bright white old European cut diamond of 5.2mm x 5.2mm diamond of 0.50ct which is a really good quality white diamond estimated colour H-I, estimated clarity approx. SI. The bright diamond sparkles so beautifully and is set into 18ct gold band. This ring is unmarked but tested for platinum and dates to the art deco period 1920s /1930s.
“
This ring would make a wonderful engagement ring with plenty of wow factor and a timeless feel of antique cuts.
Catherines Antique Jewellery Box

The stones are all set in a strong and protective platinum setting. The ring is in excellent condition for its age, the shank is in thick and in very good condition and not worn, there are no chips, nibbles or cracks to the stone. Size UK M and U.S Size 6 the total weight is 2.2g.

fig 1. A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background.
fig 1. Art Deco Platinum Diamond Solitaire Engagement Ring

Please Check Sizes And Weights As JEWELLERY IMAGES ARE ENLARGED. Dark areas are reflections on the gold.

BUY WITH CONFIDENCE: I try to accurately describe my items. I never knowingly mis-sell any item, so please read the description carefully. All items are checked by a professional Jeweller for authenticity; however no certificates are provided. If for any reason the item is found not to be genuine or as described a full refund will be given. So please buy with confidence.

fig 2. A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background.
fig 2. Art Deco Platinum Diamond Solitaire Engagement Ring

Your jewellery will come in a modern gift box and not necessarily the one in the photograph.

Please also note that Antique and Vintage items will show some signs of wear commensurate with age.

Returns are accepted however buyer must pay return postage.

fig 3. A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background.
fig 3. Art Deco Platinum Diamond Solitaire Engagement Ring

Finally - by purchasing a Used /Vintage/ Antique ring you are recycling a beautiful piece of jewellery and gemstone. In buying a ring which has been in circulation for this long is the most environmentally ethical way to purchase jewellery. Purchasing antique jewellery allows you to both support smaller local businesses and but encouraging the reuse of the vast amount of timeless jewels that are already in circulation and reduces the demand for further stripping of our planets resources.

Date of Manufacture

Catherines Antique Jewellery Box has dated this Art Deco Diamond Ring to the 1940s.

Reference Numbers
Sellingantiques Ref
SA1155027
Dealers Internal Ref
CT629
Catherines Antique Jewellery Box
Catherines Antique Jewellery Box
Sellingantiques verified Since Nov 2024

Antique jewellery finds of classic timeless quality and design

Dealer Profile

You can view the stock and full dealer information on the Catherines Antique Jewellery Box Profile Page

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A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. SOLD6+ MONTHS AGO
1 / 11
Archive I A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. SOLD6+ MONTHS AGO

Art Deco Platinum Diamond Solitaire Engagement Ring

Archive II A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View II
Archive III A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View III
Archive IV A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View IV
Archive V A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View V
Archive VI A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View VI
Archive VII A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View VII
Archive VIII A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View VIII
Archive IX A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View IX
Archive X A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View X
Archive XI A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background. View XI
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Catherines Antique Jewellery Box

Catherines Antique Jewellery Box
Telephone 07908 074712
Location
Somerset
United Kingdom
Dealer Profile Page sellingantiques.co.uk/sgolda
Verified Since Nov 2024
Items For Sale 40
Items Sold 262
Catherines Antique Jewellery Box
Catherines Antique Jewellery Box
Verified Since Nov 2024
View Dealer Info
Location: Somerset, United Kingdom
Profile: sellingantiques.co.uk/sgolda
Verified
Nov 2024
For Sale
40
Sold
262
A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background.
Art Deco Platinum Diamond Solitaire Engagement Ring
Ref: SA1155027
A platinum Art Deco engagement ring featuring a central round diamond with milgrain shoulders on a grey background.
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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1920 - 1940
  • StyleArt Deco
  • MaterialPlatinum, Diamond
  • ColourSilver
  • MotifsMilgrain edging, Geometric shoulders, Claw setting, Solitaire stone

FAQs

Art Deco jewellery, prominent from the 1920s to the 1930s, is characterised by geometric symmetry, clean lines, stylised motifs, and the prominent use of platinum paired with diamonds.

Authentic Art Deco rings predominantly utilise platinum as a setting metal due to its strength and ability to hold fine detail, alongside diamonds, sapphires, emeralds, and rubies.

Authenticity is identified through period-specific diamond cuts such as old European or transitional cuts, hand-crafted milgrain detailing, hallmark stamps, and appropriate metal ageing.

Pairing an antique engagement ring with a simple contemporary platinum band or a vintage channel-set diamond eternity ring creates a balanced contrast between historic craftsmanship and modern design.

Preservation involves regular professional inspections of the setting claws and cleaning with warm soapy water and a soft brush, avoiding harsh ultrasonic cleaners on fragile stones.
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