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sellingantiques.co.uk
ID #SA614681
FOR SALE
£1,900
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Art Deco 2.25 Carat Old Cut Diamond Pin Brooch, Circa 1930
Gatsby Jewellery Ltd
for sale €2,223     $2,413
£1,900
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd

Sellingantiques Verified Since May 2014
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    Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
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Id #SA614681
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Art Deco 2.25 Carat Old Cut Diamond Pin Brooch, Circa 1930

19th century
Description

A fantastic and high quality vintage pin brooch. The graduating line of twenty-three cushion shaped old mine cut diamonds are claw-set in palladium - a metal commonly used in late Deco jewellery. Beautiful engraving scroll detailing in the gallery lends further detail to this most classy of pieces.

Accompanied by an independent jewellery report from IGR (#30307846).

Cut – Old mine cuts.

Colour – The diamonds range from E to G.

Clarity – The diamonds range from VS1 to SI1. All are clean to the naked eye.

Carat – A total approximate weight of 2.25 carat.

Circa – 1930.

Measurements – The brooch is 7.0cm across and 4.25mm at the widest point.

Metal – Palladium. Tested.

Physical Dimensions
Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Declaration

Gatsby Jewellery Ltd has dated this Art Deco Diamond Brooch to the 1890s.

Reference Numbers
Sellingantiques Reference
SA614681
Dealers Internal Reference
4547S338
Description
A fantastic and high quality vintage pin brooch.
“
The graduating line of twenty-three cushion shaped old mine cut diamonds are claw-set in palladium - a metal commonly used in late Deco jewellery.
Gatsby Jewellery Ltd

Beautiful engraving scroll detailing in the gallery lends further detail to this most classy of pieces.

fig 1. A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders.
fig 1. Art Deco 2.25 Carat Old Cut Diamond Pin Brooch, Circa 1930

Accompanied by an independent jewellery report from IGR (#30307846).

Cut – Old mine cuts.

Colour – The diamonds range from E to G.

Clarity – The diamonds range from VS1 to SI1. All are clean to the naked eye.

Carat – A total approximate weight of 2.25 carat.

Circa – 1930.

Measurements – The brooch is 7.0cm across and 4.25mm at the widest point.

Metal – Palladium. Tested.

Height
30cm (11.81")
Width
25cm (9.84")
Depth
5cm (1.97")
Date of Manufacture

Gatsby Jewellery Ltd has dated this Art Deco Diamond Brooch to the 1890s.

Reference Numbers
Sellingantiques Ref
SA614681
Dealers Internal Ref
4547S338
Gatsby Jewellery Ltd
Gatsby Jewellery Ltd
Sellingantiques verified Since May 2014

Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.

Dealer Profile

You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page

Relevant Links
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SAVE
A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders.
1 / 6
Archive I A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders.

Art Deco 2.25 Carat Old Cut Diamond Pin Brooch, circa 1930

Archive II A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders. View II
Archive III A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders. View III
Archive IV A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders. View IV
Archive V A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders. View V
Archive VI A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders. View VI
Enlarged Archival View
Gatsby Jewellery Ltd

Gatsby Jewellery Ltd
Telephone 01992 842 123
Location
Gatsby Jewellery Ltd
3 Coppice Row
Theydon Bois
Essex
CM16 7ES
United Kingdom
Dealer Profile Page sellingantiques.co.uk/gatsby
Verified Since May 2014
Items For Sale 264
Items Sold 2,933
Gatsby Jewellery Ltd
Gatsby Jewellery Ltd
Verified Since May 2014
View Dealer Info
Location: Gatsby Jewellery Ltd, 3 Coppice Row, Theydon Bois, Essex, CM16 7ES, United Kingdom
Profile: sellingantiques.co.uk/gatsby
Verified
May 2014
For Sale
264
Sold
2,933
A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders.
Art Deco 2.25 Carat Old Cut Diamond Pin Brooch, circa 1930
Ref: SA614681
A linear Art Deco platinum bar brooch set with a continuous row of round old cut diamonds and subtle millegrain borders.
Detail View 1
Detail View 2
Detail View 3
Detail View 4
Detail View 5
Archival Detail

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FAQs

Art Deco jewellery from the 1930s is characterised by linear geometry, symmetry, and a transition towards streamlined modernism. Designs frequently featured platinum settings, geometric gemstone arrangements, fine millegrain bordering, and clean, architectural silhouettes.

Bar brooches of this period were predominantly crafted from platinum or 18ct white gold to achieve a bright, durable white setting. Diamonds during this era were typically hand-cut as old European or single cuts, held in place by grain or channel settings with millegrain detailing.

Authentic pieces display period-appropriate diamond cuts with high crowns and small tables, alongside hand-applied millegrain embellishments along the metal borders. Period hallmarks, makers marks, platinum stamps, and historic clasp mechanisms such as safety lever catches further indicate age.

When not worn, an antique diamond brooch can be displayed on a velvet watch pillow, mounted inside a glass shadow box frame, or layered on a mirrored vanity tray on a dressing table to serve as a decorative focal point.

Clean gently using lukewarm water, mild soap, and a soft-bristled brush to clear dust behind gemstone settings. Store individually in a lined jewellery box to prevent diamonds from scratching other pieces, and periodically have the clasp and settings inspected by a jeweller.
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