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Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920
Sold by AC Silver
sold SA1136529
Sorry, but this item has been sold.
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
Browse dealers 442 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 #SA1136529
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Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

1900 - 1920
Sold by AC Silver
Sold 2 February 2026 · AC Silver
This “Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920” 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 2.93 carat sapphire and 2.05 carat diamond, platinum brooch; part of our diverse antique sapphire jewellery collection.

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

The pierced decorated bar design is ornamented to the centre with horizontal linear array of three individually collet set sapphires, in a combination of oval and round faceted cuts.

The feature sapphire formation is flanked to the upper and lower portions with an individually collet set Old European round cut diamond, incorporated into an interlacing style border.

The border is further ornamented with thirty-eight pavé set Old European round cut diamonds, emanating along the bar brooch design.

Each end of the brooch is embellished with a further collet set oval faceted cut sapphire, in addition to an individually collet set Old European round cut diamond held within the aforementioned border, completing the design.

The brooch secures to the reverse with a platinum hinged pin and clasp.

This antique 1920s sapphire and diamond bar brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive sapphire and diamond brooch is supplied with an IDGL diamond grading report card.

A bar brooch featuring sapphires and diamonds from the 1920s serves as perfect anniversary gift, for significant birthdays or as a unique gift for someone who appreciates 1920s jewellery.

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.

Condition

This fine and impressive 1920s brooch is excellent quality, set with an impressive sapphire displaying fine colour, brilliance and presence.

The high colour graded diamonds display a fine white colour and brilliance; although the diamonds are clarity graded at P1, they predominantly show no unsightly black inclusions.

This sapphire brooch is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this fine example of antique sapphire jewellery/estate jewelry.

Sapphire Quality

Colour Blue

Cut Round/Oval Faceted

Content 2.93 carats

Diamond Quality

Colour (average grades) H

Clarity (average grades) P1

Cut Old European

Content 2.05 carats

Number of Diamonds

42

Dimensions

Length of setting 7.80cm/3.07"

Width of setting 1.23cm/0.48"

Across pin 6.25mm/0.25"

Height of setting 5.87mm/0.23"

Weight

9.93 grams

Date: Circa 1920

A video is available upon request.

Physical Dimensions
Height
0.587cm (0.23")
Width
1.23cm (0.48")
Depth
7.8cm (3.07")
Declaration

AC Silver has dated this Platinum Sapphire Brooch to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1136529
Dealers Internal Reference
C9166
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 2.93 carat sapphire and 2.05 carat diamond, platinum brooch; part of our diverse antique sapphire jewellery collection.

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

“
The pierced decorated bar design is ornamented to the centre with horizontal linear array of three individually collet set sapphires, in a combination of oval and round faceted cuts.
AC Silver
fig 1. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 1. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

The feature sapphire formation is flanked to the upper and lower portions with an individually collet set Old European round cut diamond, incorporated into an interlacing style border.

The border is further ornamented with thirty-eight pavé set Old European round cut diamonds, emanating along the bar brooch design.

fig 2. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 2. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

Each end of the brooch is embellished with a further collet set oval faceted cut sapphire, in addition to an individually collet set Old European round cut diamond held within the aforementioned border, completing the design.

fig 3. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 3. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

The brooch secures to the reverse with a platinum hinged pin and clasp.

This antique 1920s sapphire and diamond bar brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

fig 4. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 4. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

This impressive sapphire and diamond brooch is supplied with an IDGL diamond grading report card.

A bar brooch featuring sapphires and diamonds from the 1920s serves as perfect anniversary gift, for significant birthdays or as a unique gift for someone who appreciates 1920s jewellery.

fig 5. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 5. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

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.

Condition

This fine and impressive 1920s brooch is excellent quality, set with an impressive sapphire displaying fine colour, brilliance and presence.

fig 6. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 6. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

The high colour graded diamonds display a fine white colour and brilliance; although the diamonds are clarity graded at P1, they predominantly show no unsightly black inclusions.

This sapphire brooch is an excellent gauge of platinum and is in excellent condition.

fig 7. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 7. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

Reflections in photographs may detract from the true representation of this fine example of antique sapphire jewellery/estate jewelry.

Sapphire Quality

Colour Blue

Cut Round/Oval Faceted

Content 2.93 carats

fig 8. An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
fig 8. Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

Diamond Quality

Colour (average grades) H

Clarity (average grades) P1

Cut Old European

Content 2.05 carats

Number of Diamonds

42

Dimensions

Length of setting 7.80cm/3.07"

Width of setting 1.23cm/0.48"

Across pin 6.25mm/0.25"

Height of setting 5.87mm/0.23"

Weight

9.93 grams

Date: Circa 1920

A video is available upon request.

Height
0.587cm (0.23")
Width
1.23cm (0.48")
Depth
7.8cm (3.07")
Date of Manufacture

AC Silver has dated this Platinum Sapphire Brooch to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1136529
Dealers Internal Ref
C9166
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 elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. SOLD6+ MONTHS AGO
1 / 10
Archive I An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. SOLD6+ MONTHS AGO

Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920

Archive II An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View II
Archive III An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View III
Archive IV An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View IV
Archive V An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View V
Archive VI An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View VI
Archive VII An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View VII
Archive VIII An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View VIII
Archive IX An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View IX
Archive X An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design. View X
Enlarged Archival View
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 442
Items Sold 111
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
442
Sold
111
An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
Antique 2.93ct Sapphire, 2.05ct Diamond and Platinum Brooch Circa 1920
Ref: SA1136529
An elongated platinum brooch featuring a central cluster of blue sapphires and old cut diamonds set in a geometric openwork design.
Detail View 1
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Archival Detail
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Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectBrooches
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialPlatinum, Sapphire, Diamond
  • ColourSilver and Blue
  • MotifsMilgrain edging, Geometric openwork, Cluster setting
  • SizeH 0.587 cm (0 in) x W 1.23 cm (0 in) x D 7.8 cm (3 in)

Art Deco jewellery, prominent during the 1920s and 1930s, is characterised by geometric symmetry, clean lines, strong contrasts, and the extensive use of platinum paired with diamonds and calibre-cut gemstones.

Platinum became the metal of choice during this era due to its strength, which allowed for delicate, lace-like settings. It was predominantly paired with diamonds and precious coloured gemstones such as sapphires, rubies, and emeralds.

Authentic pieces from the 1920s typically feature hand-cut diamonds (such as old European or single cuts), meticulous milgrain detailing, handcrafted platinum settings, and authentic maker marks or purity stamps appropriate to the period.

Antique brooches offer versatile styling options beyond lapels; they can be fastened to silk scarves, used to secure waistbands, worn on evening clutch bags, or pinned to velvet headbands for contemporary events.

Platinum and gemstone pieces should be cleaned using warm soapy water and a soft-bristled brush, avoiding harsh chemicals. Professional inspection every few years ensures that settings and milgrain edges remain secure.
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