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sellingantiques.co.uk
ID #SA1065334
FOR SALE
£3,250
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Art Deco Platinum Diamond Brooch
Argentum Antiques & Collectables
for sale €3,803     $4,128
£3,250

Argentum Antiques & Collectables

Sellingantiques Verified Since Sep 2017
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Id #SA1065334
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Art Deco Platinum Diamond Brooch

1920 - 1940
Description

An Art Deco platinum diamond brooch. The art deco style brooch is set with a central marquise cut diamond weighing approximately 0.37ct within a platinum rectangular surmount set throughout with a further 102 mixed-cut diamonds totaling approximately 1.99ct.

As was common for the period, the brooch is unhallmarked, and has been tested, and confirmed to be of platinum fineness, with the pin testing as 18 carat gold.

Period: - Early 20th Century.

Date: - Circa 1930.

Measurement: - 4.1cm (length) x 0.9cm (depth) x 1.8cm (height).

Weight: - 11.3 grams.

Approximate total diamond weight - 2.36ct

Condition: - The diamonds are of good commercial quality and clarity. The pin and clasp are in good working order. Please see photos for confirmation of condition.

Item No: - 2205_tay1.

-----------------------------------

• Please email us if you wish to enquire about this piece.

• Free domestic and international delivery with DHL Express.

-----------------------------------

Argentum Antiques & Collectables Ltd is considered a professional seller (known as a trader) in the EU.

Physical Dimensions
Height
1.8cm (0.71")
Width
4.1cm (1.61")
Depth
0.9cm (0.35")
Declaration

Argentum Antiques & Collectables has dated this Art Deco Diamond Brooch to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1065334
Description
An Art Deco platinum diamond brooch. The art deco style brooch is set with a central marquise cut diamond weighing approximately 0.
“
37ct within a platinum rectangular surmount set throughout with a further 102 mixed-cut diamonds totaling approximately 1.
Argentum Antiques & Collectables

99ct.

fig 1. A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
fig 1. Art Deco Platinum Diamond Brooch

As was common for the period, the brooch is unhallmarked, and has been tested, and confirmed to be of platinum fineness, with the pin testing as 18 carat gold.

Period: - Early 20th Century.

Date: - Circa 1930.

fig 2. A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
fig 2. Art Deco Platinum Diamond Brooch

Measurement: - 4.1cm (length) x 0.9cm (depth) x 1.8cm (height).

Weight: - 11.3 grams.

Approximate total diamond weight - 2.36ct

Condition: - The diamonds are of good commercial quality and clarity. The pin and clasp are in good working order. Please see photos for confirmation of condition.

fig 3. A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
fig 3. Art Deco Platinum Diamond Brooch

Item No: - 2205_tay1.

• Please email us if you wish to enquire about this piece.

• Free domestic and international delivery with DHL Express.

Argentum Antiques & Collectables Ltd is considered a professional seller (known as a trader) in the EU.

Height
1.8cm (0.71")
Width
4.1cm (1.61")
Depth
0.9cm (0.35")
Date of Manufacture

Argentum Antiques & Collectables has dated this Art Deco Diamond Brooch to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1065334
Argentum Antiques & Collectables
Sellingantiques verified Since Sep 2017
Dealer Profile

You can view the stock and full dealer information on the Argentum Antiques & Collectables Profile Page

Relevant Links
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SAVE
A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
1 / 12
Archive I A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.

Art Deco Platinum Diamond Brooch

Archive II A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View II
Archive III A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View III
Archive IV A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View IV
Archive V A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View V
Archive VI A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View VI
Archive VII A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View VII
Archive VIII A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View VIII
Archive IX A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View IX
Archive X A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View X
Archive XI A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View XI
Archive XII A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond. View XII
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Argentum Antiques & Collectables
Telephone 0785 6562176
Location
Glasgow
Lanarkshire
United Kingdom
Dealer Profile Page sellingantiques.co.uk/argentumantiquescollectables
Verified Since Sep 2017
Argentum Antiques & Collectables
Verified Since Sep 2017
View Dealer Info
Location: Glasgow, Lanarkshire, United Kingdom
Profile: sellingantiques.co.uk/argentumantiquescollectables
Verified
Sep 2017
A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
Art Deco Platinum Diamond Brooch
Ref: SA1065334
A rectangular Art Deco platinum brooch featuring geometric openwork set with round, baguette, and a central marquise-cut diamond.
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FAQs

Art Deco diamond jewellery is characterised by strong geometric forms, symmetrical patterns, bold linear arrangements, and the widespread use of platinum paired with calibre or baguette-cut diamonds.

Art Deco brooches typically feature platinum or white gold settings, set with diamonds and occasionally accent gemstones like sapphires, emeralds, or onyx, often incorporating openwork and milgrain technique.

Authentic pieces feature signature geometric architecture, precise hand-applied milgrain edging, platinum or purity hallmarks, and period-appropriate gemstone cuts such as baguette, marquise, or transitional cuts.

An Art Deco brooch can be styled on a tailored jacket lapel, fastened to a silk scarf, attached to a velvet ribbon worn as a choker, or affixed to an evening clutch bag.

Clean the piece gently using warm water, mild soap, and a soft-bristled brush, ensuring it is stored individually in a fabric-lined pouch to prevent abrasion against other items.
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