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3.18ct Yellow Sapphire Brooch
2.40ct Diamond Brooch Detail
Swedish Sapphire Brooch Worn On
Platinum Sapphire Diamond Brooch
Cushion Cut Sapphire Detail
Yellow Sapphire Brooch Close Up
Sapphire Brooch Reverse Image
Hinged Pin Fastening Detail
Brooch Measurement Size Reference
Sheath Style Fastening Detail
Platinum Brooch Close Up
IDGL Gemstone Report Card
Brooch Worn On Jacket

Antique 3.18ct Yellow Sapphire and 2.40ct Diamond and Platinum Brooch – Swedish Circa 1935

A stunning, fine and impressive antique Art Deco Swedish 3.18 carat yellow sapphire, 2.40 carat diamond and platinum brooch; part of our diverse collection of sapphire brooches

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

The antique platinum brooch features an impressive central four-claw set 3.18ct cushion cut yellow sapphire.

The sapphire is flanked to either side with a symmetrical Art Deco array of scroll and foliate settings, ornamented with seventy-two impressive diamonds, in a combination of pear, transitional modern brilliant round and eight cuts.

This antique yellow sapphire brooch secures to the reverse with a hinged pin and sheath style fastening.

The brooch is hallmarked to the reverse with the Swedish Three Crowns National mark and the maker’s mark (WAB); the piece has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive finely crafted yellow sapphire brooch is supplied with an IDGL diamond and gemstone grading report card.

This antique yellow sapphire brooch with diamonds makes an exceptional gift for birthdays, anniversaries or retirement celebrations. The yellow sapphire, symbolising wisdom, joy, and success, provides a beautiful blend of colour and offers a meaningful way to honour personal achievements, while its timeless design brings classic antique elegance to any jewellery collection.

This stunning brooch is superior quality, set with an impressive feature sapphire displaying fine colour, brilliance and presence.

The high colour graded supporting diamonds display a fine white colour and brilliance.

This antique yellow sapphire brooch is an superior gauge of platinum and is in exceptional condition, with very clear hallmarks to the reverse; the hallmarks are struck deeply due to the superior gauge of platinum.

Additional information

Sapphire Quality

Colour Yellow
Cut Cushion
Content 3.18 carats
Dimensions 10.60mm (length) x 7.90mm (width) x 3.86mm (depth)

Dimensions

Length of setting 4.85cm/1.91"
Width of setting 1.48cm/0.58"
Across pin 3.25cm/1.28"
Height of setting 6.27mm/0.25"

Weight

11.62 grams

Gemstone

, ,

Metal

Platinum

Date

Circa 1935

Origin

Sweden, Europe

Diamond Clarity:

SI2

Diamond Colour:

H

Can be Resized:

yes

FREE INTERNATIONAL SHIPPING
Dispatched via DHL (or equivalent) on the next working day.

Estimated Delivery:

  • UK: 2–3 working days
  • Worldwide: 5–7 working days

Fully Insured in Transit
Free insurance up to £30,000. AC Silver remains responsible until delivery is confirmed.

Returns & Cancellations
You have 14 days to cancel your order.

Returns must be sent to our UK address within 14 days of cancellation.

Customers are responsible for return postage. A refund will be processed after inspection of the returned item.

Altered or Personalised Items

  • Items resized or altered before dispatch: exchange or credit note only
  • Engraved silver: non-refundable

Full returns & cancellation policy

What our customers say

5.0 ★★★★★ ★★★★★ based on 201 reviews
★★★★★ ★★★★★

Lovely selection & excellent service

AC Silver has a stunning selection of antique and vintage items. Both of my brooches arrived right on time as indicated by the tracking. They are even lovelier in person and I look forward to wearing them for decades to come. Andrew and Gemma provided excellent communication and prompt dispatch. I would absolutely recommend working through them.
Christina 15 Jul 2026
★★★★★ ★★★★★

Fabulous service, beautiful product.

Fabulous service, beautiful product.
Imogen 24 Jun 2026
★★★★★ ★★★★★

Beautiful collection and outstanding service

Beautiful collection and outstanding service. I already bought two extraordinary pieces and can only highly recommend.
Christine 23 Jun 2026
★★★★★ ★★★★★

Excellent customer care.

I had to place the order over the phone as my internet was misbehaving. The lady who I spoke to could not have been more helpful and was particularly careful to get all the details correct. I was then informed about the collection and dispatch of the item purchased, by email. The item arrived as expected and it had been most well packed so that no harm could come to it. It was a delight to purchase this item from C6323, AC Silver, and I could not fault any aspect of their customer care. I was highly delighted with my silver mustard pot and it was much better than the pictures on the web site.
Hilary 20 May 2026
★★★★★ ★★★★★

Exceptional personal service

First class personal service and attention to detail along with an exceptional quality of items offered for sale. A very smooth purchasing experience with swift and safe despatch of high value objects via courier. Highly recommended.
Colin 28 Apr 2026
★★★★★ ★★★★★

A lovely experience

AC Silver's website is very detailed and informative - allows customers to make well good comparisons and subsequent choices. The owner and his staff are very helpful and friendly - dealing with them is a pleasure. They go the extra mile to make sure that customers are totally satisfied with their purchases. Would highly recommend this store.
Wendy 27 Feb 2026
★★★★★ ★★★★★

Excellent experience

Excellent experience buying a beautiful item from AC Silver. Enquiries were dealt with quickly and courteously, I felt very confident buying an expensive item online. It arrived quickly and safely, beautifully packaged. I am delighted with it and wouldn't hesitate to recommend AC Silver.
Susan 24 Jan 2026
★★★★★ ★★★★★

This was an all-around great experience. The pre-sale communication was excellent and informative. The team was extremely responsive. When the item arrived, it was exactly as described.

This was an all-around great experience. The pre-sale communication was excellent and informative. The team was extremely responsive. When the item arrived, it was exactly as described. I would recommend these guys to anyone.
26 Dec 2025

Frequently Asked Questions

  • Certainly, this antique brooch, adorned with yellow sapphire and diamonds, dates back to approximately 1935 and is a true representation of Art Deco jewellery. Constructed from platinum and marked with Swedish hallmarks, it highlights the refined geometric aesthetics and superior craftsmanship that contribute to the high collectibility of Art Deco sapphire brooches.

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Original Price:
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