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Antique Diamond Platinum Pendant
3.68ct Diamond Pendant Front
Diamond Jewellery Collection
Circular Floral Pendant Detail
Platinum Diamond Pendant Close Up
Old European Diamond Pendant Reverse
Pendant Measurement Size Reference
Pendant Worn On Neck
Floral Diamond Pendant Worn
IDGL Diamond Report Card
Gemstone Report Card
Independent Diamond Report Card

Antique 3.68ct Diamond and Platinum Pendant – Circa 1915

A stunning, fine and impressive circular antique 3.68 carat diamond and platinum pendant; part of our diamond jewellery collection

This stunning circular antique diamond pendant has been crafted in platinum.

The pierced decorated, tear-shaped frame displays a feature collet 0.57ct Old European cut diamond.

The sinuous frame is ornamented with fifty-six pavé set diamonds, incorporating a paired leaf design to the upper portion, in addition to further collet set diamonds creating a linear array, all in a combination of Old European and eight cuts.

The outer circumference of the pendant drop is embellished with nine simplified five-petalled floral head designs, each accented with six diamonds.

The chevron-shaped border to the upper portion of the drop is ornamented with six further pavé set diamonds and emanates to the floral designs with two terminating collet set diamonds.

This stunning and finely-detailed organic pendant design suspends from an independently collet set 0.39ct Old European round cut diamond, completing the design.

This pendant suspends from a platinum 16″ chain via two ring loops to the upper border of the design and secures to the reverse with a conventional spring-loaded lobster clasp.

This antique diamond pendant and chain have been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

The pendant is supplied with two IDGL diamond grading certificates for the feature diamonds, in addition to an IDGL diamond grading report card for the supporting stones.

This graceful pendant makes a thoughtful gift for milestone birthdays, anniversaries, weddings, Mother’s Day, Valentine’s Day or other special celebrations, combining refined elegance with meaningful symbolism. Its classic design ensures it can be worn and treasured for a lifetime, while its exceptional craftsmanship and timeless appeal give it lasting heirloom value.

This impressive antique diamond pendant necklace is excellent quality, set with high colour graded feature diamonds displaying a fine white colour, brilliance and presence.

The well colour matched supporting diamonds display a fine white colour and brilliance.

The pendant is an excellent gauge of platinum and is in excellent condition.

Additional information

Diamond Quality

Feature Diamond One
Colour H
Clarity SI2
Cut Old European
Content 0.57 carat
Dimensions 5.35mm (length) x 5.29mm (width) x 3.02mm (depth)

Feature Diamond Two
Colour H
Clarity SI1
Cut Old European
Content 0.39 carat
Dimensions 4.91mm (length) x 4.89mm (width) x 2.34mm (depth)

Supporting Diamonds
Colour (average grades) H/I
Clarity (average grades) SI2/P1
Cut Old European/Eight
Content 2.72 carats

Total Diamond Content
3.68 carats

Number of Diamonds
126

Dimensions

Length of drop 5.3cm/2.09"
Width of pendant 3.4cm/1.34"
Height of setting 3.82mm/0.15"
Chain length 40.64cm/16"

Weight

11.22 grams (including chain)

Gemstone

Metal

Platinum

Date

Circa 1915

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 206 reviews
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I can’t rate ACSilver highly enough

I can’t rate ACSilver highly enough. Their offer is outstanding and very keenly priced. Communication and customer service including the use of thoroughly dependable couriers is exemplary. I have made 3 purchases over a period of time and been absolutely delighted on each occasion.
Anigail 16 Oct 2026
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AC is outstanding

AC is outstanding and I have never before dealt with a company with such integrity. I love the beautiful silver cutlery and cruet set i have just bought and have much enjoyed the conversations I have had and the knowledge of the people with whom I have dealt. Anyone can deal with this company with absolute confidence. Lois Mears
Lois 6 Oct 2026
★★★★★ ★★★★★

"A wonderful experience.................10/10

Their descriptions of jewellery were very precise and accurate. Any queries I had were dealt with immediately and courteously. Presentation and display of the bracelet was wonderful and the packaging was very comprehensive. The bracelet was shipped in a day with complete security.
ROGAN 30 Sep 2026
★★★★★ ★★★★★

I have dealt with AC silver on several occasions

I have dealt with AC silver on several occasions and always found Andrew extremely knowledgable and trustworthy. Nothing is too much trouble and I am absolutely delighted with my last purchase of a 5 stone diamond ring. From start to finish the process was extremely easy and everything catered for. It was a pleasure to del with Andrew and his most helpful and charming Assistant.
Kathryn 6 Sep 2026
★★★★★ ★★★★★

excellent communication and fast deliver…

excellent communication and fast delivery
oliver 10 Aug 2026
★★★★★ ★★★★★

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

Frequently Asked Questions

  • This diamond pendant dates to circa 1915, making it an authentic early 20th-century piece. Its intricate pierced decoration, floral motifs and Old European cut diamonds showcase the detailed craftsmanship associated with fine jewellery of the period.

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