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ID #SA1104955
FOR SALE
£5,000
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Superb Quality Art Deco White Gold, Rock Crystal Quartz, Black Onyx, Chrysoprase and Diamond Set Brooch
For sale by CJ Antiques
for sale €5,850     $6,350
£5,000

CJ Antiques

Sellingantiques Verified Since Aug 2009
Browse dealers 234 items
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Id #SA1104955
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Superb Quality Art Deco White Gold, Rock Crystal Quartz, Black Onyx, Chrysoprase and Diamond Set Brooch

1900 - 1920
For Sale by CJ Antiques
Description

A very rare Art Deco rock crystal brooch of unusual design the rock crystal radially star cut with a central diamond set within a double bead border of 18ct white gold. The surround set with black onyx cabochons and flanked to either side by raised chrysoprase cabochon panels, all interspersed with raised millegrain detail. Each corner set with a raised floral motif. The outer edge with a pierced oval leaf design with detailed beadwork. Diamond G-H colour VS1.

23mm length x 19mm width

https://www.1stdibs.com/jewelry/brooches/brooches/art-deco-diamond-crystal-quartz-brooch-platinum-950/id-j_16312152/#skuId=j_16312152S1

Declaration

CJ Antiques has dated this Art Deco Crystal Brooch to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1104955
Dealers Notes

FREE DELIVERY- Most of our items priced in excess of £1500 are delivered free of charge and can be purchased with a 20% deposit and the balance on delivery to most mainland UK destinations. Please specify a postal area for clarification. We deliver to all international destinations in foam lined wooden ply crates. Please email or phone for a quote. We abide by the UK and EU consumer contracts regulations 2014/distance selling regulations and confirm that if for any reason you are not happy , within the first fourteen days of receiving the item, we will issue a full refund minus the return carriage costs. All items must be returned within 7 days following confirmation of intention to return the item.

All our items arrive in great condition and have all been through our workshops and fully restored so they arrive in house ready condition, unless stated to the contrary; any imperfections are commensurate with the age and beauty of owning antiques.

Description
A very rare Art Deco rock crystal brooch of unusual design the rock crystal radially star cut with a central diamond set within a double bead border of 18ct white gold.
“
The surround set with black onyx cabochons and flanked to either side by raised chrysoprase cabochon panels, all interspersed with raised millegrain detail.
CJ Antiques

Each corner set with a raised floral motif. The outer edge with a pierced oval leaf design with detailed beadwork. Diamond G-H colour VS1.

23mm length x 19mm width

https://www.1stdibs.com/jewelry/brooches/brooches/art-deco-diamond-crystal-quartz-brooch-platinum-950/id-j_16312152/#skuId=j_16312152S1

Date of Manufacture

CJ Antiques has dated this Art Deco Crystal Brooch to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1104955
CJ Antiques
Sellingantiques verified Since Aug 2009
Dealer Profile

You can view the stock and full dealer information on the CJ Antiques Profile Page

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An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays.
1 / 4
Archive I An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays.

Superb Quality Art Deco White Gold, Rock Crystal Quartz, Black Onyx, Chrysoprase and Diamond Set Brooch

Archive II An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays. View II
Archive III An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays. View III
Archive IV An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays. View IV
Enlarged Archival View

CJ Antiques
Telephone 07929 760779
Location
Anglesey
United Kingdom
Dealer Profile Page sellingantiques.co.uk/cj
Verified Since Aug 2009
Items For Sale 234
Items Sold 585
CJ Antiques
Verified Since Aug 2009
View Dealer Info
Location: Anglesey, United Kingdom
Profile: sellingantiques.co.uk/cj
Verified
Aug 2009
For Sale
234
Sold
585
An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays.
Superb quality Art Deco white gold, rock crystal quartz, black onyx, chrysoprase and diamond set brooch
Ref: SA1104955
An Art Deco rectangular white gold brooch featuring a starburst-carved translucent rock crystal quartz plaque set with a central diamond, surrounded by green chrysoprase and black onyx inlays.
Detail View 1
Detail View 2
Detail View 3
Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectBrooches
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialWhite Gold, Rock Crystal Quartz, Black Onyx, Chrysoprase, Diamond
  • ColourSilver and Green
  • MotifsStarburst carving, Millegrain borders, Geometric inlay, Corner fan motifs

This Art Deco brooch originates from the 1920 period. The piece takes the form of a rectangular white gold mount holding a translucent rock crystal quartz plaque. The quartz bears a radial starburst carving and a central diamond in a millegrain-edged diamond setting. Alternating black onyx and green chrysoprase panels form a colourful border alongside raised floral motifs at each corner and pierced oval leaf designs at the edges. Measuring 2.3 cm in length by 1.9 cm in width, the brooch serves as a personal accessory to pin to garments, scarves, or lapels in contemporary wear. The high-contrast combination of white gold, clear crystal, diamond sparkle, green chrysoprase, and black onyx creates a geometric display characteristic of the glamour of the 1920 era.

FAQs

Art Deco brooches created during the 1920s and 1930s feature geometric symmetry, bold colour contrasts, and the integration of carved gemstones like rock crystal, onyx, and jade paired with fine diamonds and white gold settings.

Fine jewellery from the Art Deco era frequently utilised platinum or white gold mountings combined with carved rock crystal quartz, contrasting black onyx, green chrysoprase, and brilliant-cut diamonds.

Authentic period pieces exhibit precise millegrain edging, geometric gemstone cutting, period purity hallmarks or makers marks, and hand-carved quartz or hardstone elements characteristic of early 20th-century craftsmanship.

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

Clean gently using a soft microfibre cloth and mild soapy warm water, avoiding ultrasonic cleaners, steam, or harsh chemicals that could damage delicate quartz carvings or gemstone inlays.
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