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Antique 1.57 Carat Basaltic Sapphire and 1.20 Carat Diamond Pendant in Platinum

A stunning, fine and impressive antique 1.57 carat Basaltic sapphire and 1.20 carat diamond, platinum pendant – boxed; part of our diverse antique sapphire jewellery and estate jewelry collections

This stunning, fine and impressive antique sapphire an diamond pendant has been beautifully crafted in platinum.

The drop style pendant displays a feature 1.40ct pear cut blue Basaltic sapphire, claw set to the bottom of the design, surrounded by sixteen pavé set diamonds arranged in a scalloped border.

This antique pendant boasts a pear-shaped terminal that dangles from an articulated linear drop, decorated with collet and pavé set diamonds, in a fusion of Old European, mine, and eight cuts.

At the top of the linear drop lies a stunning 0.17ct square faceted cut sapphire, above a stylised three leaf design ornamented with six pavé set diamonds.

Emanating from the apex sapphire, the necklace setting spreads to both sides, reflecting the same design as the linear drop and joining with the platinum chain, which is attached at the back with a conventional spring-loaded bolt ring fastening.

This stunning antique pendant, designed in a pear shape and adorned with a sapphire, has been thoroughly tested by independent experts using advanced technology (Niton XL2 Analyzer) and has been validated as platinum.

This sapphire and diamond pendant is supplied with an IDGL diamond and gemstone grading report card, in addition to a feature sapphire report card and certificate supplied by the Gemmological Certification Services, London*.

This platinum sapphire necklace/pendant is fitted to the original hinged leatherette presentation box, with a bespoke velvet and satin lined interior, securing with a push fit catch.

The interior of the cover bears the renowned retailer’s mark ‘By appointment to H. M. The Queen – Goldsmiths & Crown Jewellers, Garrard & Co Ltd, 112. Regent Street. W. 1’.

A blue sapphire and diamond pendant necklace in platinum is a distinguished and elegant choice, making it an exceptional gift for anniversaries – particularly the 5th or 45th (sapphire) anniversaries – or for those born in September, with sapphire as their birthstone. Collectors will appreciate its refined craftsmanship, while it also stands as a striking personal acquisition.

NOTE: * This documentation accredits the feature sapphire originating in Basaltic deposit and certifies that the gemstone shows no indications of heating.

This impressive antique pendant is exceptional quality, set with stunning sapphires displaying fine colour, brilliance and presence.

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

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

Additional information

Sapphire Quality

Feature Sapphire
Origin Basaltic Deposit
Colour Blue
Cut Pear
Content 1.40 carats
Dimensions 8.40mm (length) x 6.00mm (width) x 3.40mm (depth)

Supporting Sapphire
Cut Square Faceted
Content 0.17 carat

Diamond Quality

Colour (average grades) G
Clarity (average grades) SI2
Cut Old European/Eight/Mine
Content 1.20 carats

Number of Diamonds
49

Dimensions

Length of drop 4.7cm/1.85"
Width of pendant 1.24cm/0.49"
Height of setting 3.23mm/0.13"
Wearing length 42.67cm/16.8"

Weight

6.59 grams (including chain)

Gemstone

,

Date

Circa 1915

Diamond Clarity:

VS1

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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