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halo diamond pendant necklace in platinum outside
holding halo diamond pendant necklace in platinum
wearing halo diamond pendant necklace in platinum
halo diamond pendant necklace in platinum with other diamond jewellery
halo diamond pendant necklace with other necklaces
halo diamond pendant necklace with chain
halo diamond pendant necklace in platinum
reverse of halo diamond pendant necklace
halo diamond pendant necklace in platinum size
halo diamond pendant necklace on neck
wearing a halo diamond pendant necklace
halo diamond pendant necklace grading certificate

Antique 2.48ct Diamond Halo Pendant Necklace in Platinum

A stunning, fine and impressive antique 2.48 carat diamond and platinum halo pendant; part of our expansive 1920s jewellery collection

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

At its centre, the pierced, circular frame holds a magnificent 1.70ct Old European cut diamond, suspended within the setting. Surrounding the feature stone is a scalloped, millegrain-edged halo adorned with twenty pavé-set Old European and eight-cut diamonds.

The pendant is further enhanced by a collet-set Old European cut diamond from which the scalloped frame gracefully suspends. The reverse reveals an additional arched support structure for the articulating centre diamond; this indicates the high quality of the piece.

The piece is presented on a classic 16-inch platinum chain, attached via two discreet ring loops at the upper border, and secured with a spring-loaded lobster clasp to the reverse.

This antique diamond necklace has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. It is accompanied by an IDGL diamond grading certificate for the principal diamond and an IDGL grading report card for the supporting stones.

This 1920s diamond halo pendant in platinum is a timeless piece of jewellery, highly sought after by collectors and connoisseurs alike. It makes an exquisite gift for weddings, anniversaries or birthdays, with its enduring brilliance and refined design ensuring it will be cherished for generations. Perfect for evening occasions, black-tie events or adding vintage sophistication to a bridal ensemble.

This impressive antique 1920s pendant is exceptional quality, set with very high colour graded feature diamond displaying a fine white colour, brilliance and presence.

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

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

Additional information

Diamond Quality

Feature Diamond
Colour I
Clarity SI1
Cut Old European
Content 1.70 carats
Dimensions 7.35mm (length) x 7.30mm (width) x 4.35mm (depth)

Supporting Diamonds
Colour (average grades) H
Clarity (average grades) SI1
Cut Old European/Eight
Content 0.78 carat

Total Diamond Content
2.48 carats

Number of Diamonds

22

Dimensions

Length of drop 2.04cm/0.8"
Width of pendant 1.32cm/0.52"
Height of setting 6.93mm/0.27"
Chain length 40.64cm/16"

Weight

6.11 grams (including chain)

Date

Circa 1920

Gemstone

Diamond Clarity:

VVS1

Diamond Colour:

I

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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