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Diamond Necklace with Aquamarine Pendant outside
platinum Diamond Necklace with Aquamarine Pendant
Diamond Necklace with Aquamarine Pendant
vintage Diamond Necklace with Aquamarine Pendant
Diamond Necklace with Aquamarine Pendant pieces
Diamond Necklace
Diamond Necklace reverse
Diamond Necklace with Aquamarine Pendant size
Diamond Necklace with Aquamarine Pendant grading card
Diamond Necklace with Aquamarine Pendant wearing
Diamond Necklace with Aquamarine Pendant being worn
Diamond Necklace wearing

Vintage 33.20ct Aquamarine, 3.59ct Diamond and Platinum Pendant – Circa 1950

A stunning, fine and impressive vintage 3.59 carat diamond necklace with 33.20 carat aquamarine drop pendant crafted in platinum; part of our diverse 1950s aquamarine jewellery collections

This stunning, fine and impressive vintage necklace has been crafted in platinum.

The necklace has a symmetrical linear formation, to a stylised bow design, with a feature detachable articulated drop.

The stunning feature drop is comprised of a platinum four claw set principal 33.20ct oval faceted cut Aquamarine, suspended from an individually claw set transitional modern brilliant round cut diamond.

The main setting of the necklace has a linear form ornamented with twenty-two impressive baguette-cut diamonds.

The central point of the necklace features a stylised quatrefoil bow design accented with four collet set baguette cut diamonds, in addition to a transitional modern brilliant round cut diamond to the centre and the apex.

The linear arrangement is further ornamented to either end with a single four-claw set transitional modern brilliant round cut diamond, completing the design.

This vintage necklace is suspended from a contemporary platinum trace chain and secures to the reverse with a conventional spring-loaded lobster clasp.

The detachable aquamarine drop secures to the necklace setting with a discrete integrated push fit clasp and hinged security fastening; this fine feature allows the versatile piece to be worn as a statement gemstone or diamond necklace.

The clasp to this stunning oval cut aquamarine necklace is hallmarked with the platinum mark (Pt950) and the necklace has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive platinum vintage necklace is supplied with an IDGL diamond grading report card.

This vintage aquamarine and diamond pendant, crafted in platinum is best suited to truly significant occasions where scale, rarity, and elegance are central. Its refined mid-century design creates a striking yet sophisticated statement typical of high-quality vintage jewellery.

This vintage necklace is excellent quality, set with a stunning aquamarine displaying fine colour, brilliance and presence.

The well colour matched and high colour graded diamonds display a fine white colour, brilliance and presence.

The necklace is an excellent gauge of platinum and is in excellent condition, with a clear hallmark to the lobster clasp.

Additional information

Aquamarine Quality

Cut Oval Faceted
Content 33.20 carats
Dimensions 22.34mm (length) x 18.19mm (width) x 13.29mm (depth)

Diamond Quality

Colour (average grades) G
Clarity (average grades) VS1
Cut Baguette/Transitional Modern Brilliant Round
Content 3.59 carats

Number of Diamonds
35

Dimensions

Length of drop 3.9cm/1.54"
Width of setting 9.3cm/3.66"
Height of setting 1.33cm/0.52"
Wearing length 49.53cm/19.5"

Weight

23.66 grams

Gemstone

,

Date

Circa 1950

Metal

Platinum

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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