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Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930
Sold by AC Silver
sold SA1143310
Sorry, but this item has been sold.
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
Browse dealers 462 items
  • About Us
    Welcome to ac silver antique silver and antique jewellery specialists since 1977
  • Trade Associations
    AC Silver is a registered member of LAPADA  CINOA
Id #SA1143310
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Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

1920 - 1940
Sold by AC Silver
Sold 24 November 2025 · AC Silver
This “Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930” found a buyer.

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

Description

A stunning, fine and impressive antique Art Deco 4.52 carat diamond and platinum brooch; part of our diverse antique jewellery and estate jewelry collections.

This stunning, fine and impressive antique diamond brooch has been crafted in platinum.

The pierced decorated, geometric Art Deco setting is ornamented with a central feature pavé set 0.20ct Transitional modern brilliant round cut diamond.

The feature stone is surrounded with pierced decorated quatrefoil designs accented with a diamond to each portion.

The organic-style protruding design to each side incorporates twenty-eight pavé set diamonds, in a combination of Old European, eight and Dutch cuts.

The geometric symmetrical frame and collar designs incorporate a total of fifty-eight pavé set diamonds.

The splayed fan designs to the upper and lower portions of the brooch bear thirty-six pavé set diamonds, completing the stunning and iconic Art Deco design.

The stunning design secures to the reverse with a hinged pin and security catch.

This brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive antique brooch is supplied with an IDGL diamond grading report certificate for the feature stone, in addition to an IDGL diamond grading report card for the supporting stones.

This Art Deco-style diamond brooch is a bold and luxurious statement piece, ideal for collectors or those drawn to the elegance and geometry of Art Deco glamour.

Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone in this 4.52 carat diamond brooch - Art Deco style.

Condition

This stunning Art Deco brooch is excellent quality, set with a high colour and clarity graded feature diamond displaying a fine white colour, brilliance and presence.

The well colour matched, high colour graded supporting stones display a fine white colour and brilliance.

The brooch is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this stunning example of diamond jewellery.

Diamond Quality

Feature Diamond

Colour G

Clarity VS1

Cut Round Brilliant

Content 0.20 carat

Dimensions 3.80mm (average diameter) x 2.28mm (depth)

Supporting Diamonds

Colour (average grades) H/I

Clarity (average grades) SI1/SI2

Cut Old European/Eight/Dutch

Content 4.32 carats

Total Diamond Content

4.52 carats

Number of Diamonds

127

Dimensions

Length of setting 4.3cm/1.69'

Width of setting 2.56cm/1.01'

Across pin 3.4cm/1.34'

Height of setting 2.31mm/0.09'

Weight

10.24 grams

Date: Circa 1930

A video is available upon request.

Physical Dimensions
Height
0.2cm (0.08")
Width
2.6cm (1.02")
Depth
4.3cm (1.69")
Declaration

AC Silver has dated this Platinum Diamond Brooch to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1143310
Dealers Internal Reference
C9220
Dealers Notes

PLEASE NOTE: AC Silver takes pride in offering only quality items for sale.

This pride in quality includes the professional, efficient and personal service extended to all AC Silver customers.

All items purchased usually dispatched within 24 hours following cleared payment.

All items are professionally and securely packaged, sent FREE of charge and are FULLY INSURED during transit.

FREE worldwide international deliveries are via FedEx International Priority Service.

AC Silver is pleased to provide a 30-day money back guarantee.

Description
A stunning, fine and impressive antique Art Deco 4.
“
52 carat diamond and platinum brooch; part of our diverse antique jewellery and estate jewelry collections.
AC Silver

This stunning, fine and impressive antique diamond brooch has been crafted in platinum.

fig 1. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 1. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

The pierced decorated, geometric Art Deco setting is ornamented with a central feature pavé set 0.20ct Transitional modern brilliant round cut diamond.

The feature stone is surrounded with pierced decorated quatrefoil designs accented with a diamond to each portion.

fig 2. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 2. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

The organic-style protruding design to each side incorporates twenty-eight pavé set diamonds, in a combination of Old European, eight and Dutch cuts.

The geometric symmetrical frame and collar designs incorporate a total of fifty-eight pavé set diamonds.

fig 3. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 3. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

The splayed fan designs to the upper and lower portions of the brooch bear thirty-six pavé set diamonds, completing the stunning and iconic Art Deco design.

The stunning design secures to the reverse with a hinged pin and security catch.

fig 4. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 4. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

This brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive antique brooch is supplied with an IDGL diamond grading report certificate for the feature stone, in addition to an IDGL diamond grading report card for the supporting stones.

fig 5. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 5. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

This Art Deco-style diamond brooch is a bold and luxurious statement piece, ideal for collectors or those drawn to the elegance and geometry of Art Deco glamour.

Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone in this 4.52 carat diamond brooch - Art Deco style.

fig 6. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 6. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

Condition

This stunning Art Deco brooch is excellent quality, set with a high colour and clarity graded feature diamond displaying a fine white colour, brilliance and presence.

The well colour matched, high colour graded supporting stones display a fine white colour and brilliance.

fig 7. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 7. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

The brooch is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this stunning example of diamond jewellery.

Diamond Quality

fig 8. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 8. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

Feature Diamond

Colour G

Clarity VS1

Cut Round Brilliant

Content 0.20 carat

Dimensions 3.80mm (average diameter) x 2.28mm (depth)

Supporting Diamonds

Colour (average grades) H/I

Clarity (average grades) SI1/SI2

fig 9. An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
fig 9. Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

Cut Old European/Eight/Dutch

Content 4.32 carats

Total Diamond Content

4.52 carats

Number of Diamonds

127

Dimensions

Length of setting 4.3cm/1.69'

Width of setting 2.56cm/1.01'

Across pin 3.4cm/1.34'

Height of setting 2.31mm/0.09'

Weight

10.24 grams

Date: Circa 1930

A video is available upon request.

Height
0.2cm (0.08")
Width
2.6cm (1.02")
Depth
4.3cm (1.69")
Date of Manufacture

AC Silver has dated this Platinum Diamond Brooch to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1143310
Dealers Internal Ref
C9220
AC Silver
AC Silver
Sellingantiques verified Since Apr 2009

Welcome to ac silver antique silver and antique jewellery specialists since 1977

Dealer Profile

You can view the stock and full dealer information on the AC Silver Profile Page

Trade Associations

AC Silver is a registered member of LAPADA  CINOA

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An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. SOLD6+ MONTHS AGO
1 / 12
Archive I An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. SOLD6+ MONTHS AGO

Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930

Archive II An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View II
Archive III An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View III
Archive IV An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View IV
Archive V An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View V
Archive VI An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View VI
Archive VII An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View VII
Archive VIII An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View VIII
Archive IX An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View IX
Archive X An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View X
Archive XI An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View XI
Archive XII An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs. View XII
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Telephone 0191 240 2645
Location
35B St Georges Terrace
Jesmond
Newcastle Upon Tyne
Tyne and Wear
NE2 2SU
United Kingdom
Dealer Profile Page sellingantiques.co.uk/ac
Verified Since Apr 2009
Items For Sale 462
Items Sold 113
AC Silver
AC Silver
Verified Since Apr 2009
View Dealer Info
Location: 35B St Georges Terrace, Jesmond, Newcastle Upon Tyne, Tyne and Wear, NE2 2SU, United Kingdom
Verified
Apr 2009
For Sale
462
Sold
113
An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
Antique Art Deco 4.52ct Diamond and Platinum Brooch Circa 1930
Ref: SA1143310
An intricate platinum and diamond art deco brooch featuring geometric patterns and sunburst motifs.
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Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectBrooches
  • Period1920 - 1940
  • StyleArt Deco
  • MaterialPlatinum, Diamond
  • ColourSilver
  • MotifsGeometric framework, Sunburst rays, Millegrain detailing
  • SizeH 0.2 cm (0 in) x W 2.6 cm (1 in) x D 4.3 cm (2 in)

Art Deco jewellery, prominent during the 1920s and 1930s, is characterised by geometric symmetry, clean lines, stylised floral or sunburst motifs, and a heavy reliance on white metals such as platinum paired with diamonds.

Platinum became the metal of choice during the Art Deco period due to its exceptional strength, which allowed jewellers to create delicate, lace-like settings without losing structural integrity, frequently set with old European or transitional cut diamonds.

Authentic pieces typically feature period-appropriate fastenings such as C-clasps or early safety catches, hand-cut diamonds with distinctive open culets, and millgrained edges on platinum settings executed by hand rather than cast.

A period brooch can be worn pinned to the lapel of a tailored blazer, fastened at the neckline of a minimalist dress, or secured to a velvet headband or silk scarf to add a focal point of historic craftsmanship to modern attire.

Clean platinum and diamond pieces using warm water, mild washing-up liquid, and a soft-bristled brush to remove accumulated oils, and store them individually in fabric-lined boxes to prevent scratching adjacent pieces.
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