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Large Victorian 12.76 Carat Diamond Brooch in 9ct Yellow Gold

A magnificent, stunning, fine and impressive antique Victorian 12.76ct diamond and 9 carat yellow gold, silver set brooch; part of our diverse antique Victorian diamond brooch collection

This exceptional antique diamond brooch has been masterfully crafted in 9ct yellow gold with a silver setting, reflecting the design and fine craftsmanship of the Victorian period.

At its centre lies a magnificent 1.55ct claw-set Old European cut diamond, encircled by eight further Old European cut diamonds in a striking cluster arrangement. Surrounding this central design are eight substantial Old European cut diamonds, ranging from 0.70ct to 0.88ct each, giving the brooch its impressive presence. These are further enhanced by intertwining curvilinear borders set with additional Old European and Dutch cut pavé-set diamonds, completing a perfectly symmetrical and floral-inspired display of brilliance.

The reverse is fitted with a secure 9ct yellow gold hinged pin and clasp, ensuring practicality alongside beauty. As is characteristic of the era, the piece has been independently tested and verified as 9ct gold with a silver setting using advanced Niton XL2 Analyzer technology.

This extraordinary Victorian brooch is supplied with nine independent IDGL diamond grading certificates for the principal stones, alongside a grading report card for the supporting diamonds, giving complete assurance of quality.

A brooch of this calibre represents the very best of 19th-century diamond craftsmanship. Perfect as a collector’s piece, a statement heirloom jewel, or a remarkable gift to mark a life’s milestone.

This stunning Victorian brooch is exceptional quality, set with stunning feature diamonds displaying a fine white colour, brilliance and presence.

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

This Victorian diamond cluster brooch is an exceptional gauge of gold and is in exceptional condition.

Additional information

Diamond Quality

Feature Diamond One
Colour G
Clarity SI1
Cut Old European
Content 1.55 carats
Dimensions 7.39mm (length) x 7.42mm (width) x 4.26mm (depth)

Feature Diamond Two
Colour I
Clarity SI1
Cut Old European
Content 0.88 carat
Dimensions 5.95mm (length) x 5.10mm (width) x 3.57mm (depth)

Feature Diamond Three
Colour G
Clarity SI1
Cut Old European
Content 0.81 carat
Dimensions 6.01mm (length) x 5.90mm (width) x 3.59mm (depth)

Feature Diamond Four
Colour G
Clarity SI2
Cut Old European
Content 0.81 carat
Dimensions 6.01mm (length) x 5.97mm (width) x 3.60mm (depth)

Feature Diamond Five
Colour J
Clarity P1
Cut Old European
Content 0.80 carat
Dimensions 5.96mm (length) x 5.88mm (width) x 3.58mm (depth)

Feature Diamond Six
Colour H
Clarity VS2
Cut Old European
Content 0.79 carat
Dimensions 5.94mm (length) x 5.93mm (width) x 3.56mm (depth)

Feature Diamond Seven
Colour H
Clarity SI2
Cut Old European
Content 0.75 carat
Dimensions 5.83mm (length) x 5.84mm (width) x 3.50mm (depth)

Feature Diamond Eight
Colour G
Clarity VS2
Cut Old European
Content 0.72 carat
Dimensions 5.11mm (length) x 5.62mm (width) x 4.45mm (depth)

Feature Diamond Nine
Colour H
Clarity VS2
Cut Old European
Content 0.70 carat
Dimensions 5.94mm (length) x 5.87mm (width) x 3.61mm (depth)

Supporting Diamonds
Colour (average grades) H/I
Clarity (average grades) SI2/P1
Cut Old European/Dutch
Content 4.95 carats

Total Diamond Content
12.76 carats

Number of Diamonds
105

Dimensions

Length of setting 4.2cm/1.65"
Across pin 3.1cm/1.22"
Height of setting 1.21cm/0.47"

Weight

15.52 grams

Date

Circa 1890

Gemstone

Metal

Yellow Gold

Setting Metal

Silver

Diamond Clarity:

SI1

Diamond Colour:

G

Can be Resized:

no

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

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