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Art Deco 6.68ct Diamond and 18ct White Gold Necklace / Bracelet – French Circa 1940

A stunning vintage French 6.68 carat diamond and 18 carat white gold and platinum set Art Deco necklace / bracelet; part of our diverse diamond jewellery and estate jewelry collections

This stunning, fine and impressive statement diamond necklace has been crafted in 18ct white gold, with platinum settings.

The central 18ct white gold, platinum set feature domed circular portion of the necklace is ornamented with fifty-eight four-claw set transitional modern brilliant round cut diamonds, arranged in a crisscross pattern.

The upper and lower portions of this feature segment are bordered with five individually four-claw set diamonds, graduating in size.

The central feature portion is flanked to either side with a bifurcating scrolling motif, emanating from a two-dimensional collar design embellished with thirteen platinum pavé set transitional modern brilliant round cut diamonds.

A plain tapering tri-lobed setting graduates the feature setting to a simple band of seven pavé set diamonds, completing the ornamental design.

The feature Art Deco style diamond setting suspends from an articulated, sprung snake style chain with ball terminals and integrated hallmarked push fit clasps, accented with the additional benefits of hinged security clasps.

This versatile vintage French necklace may also be worn as a diamond bracelet, by removing the articulated plain snake style chain via the push fit fastenings.

The clasps are hallmarked to the tongues with the French hallmarks for 18ct gold (eagle’s head).

This impressive vintage diamond necklace bracelet set has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as 18ct gold and platinum.

This stunning versatile Art Deco bracelet / necklace is supplied with an independent diamond grading report card.

This piece is ideal for those who participate in events, galas, or formal dinners, as it can easily switch between a necklace and a bracelet. It combines flexibility with a striking presence.

High-quality Art Deco French pieces are growing rarer, and those that offer multiple wearing styles are even less common. They are often purchased with the intent of being passed down through generations, rather than just for occasional use.

This stunning Art Deco diamond necklace bracelet set is exceptional quality, set with very high colour graded diamonds displaying a fine white colour and brilliance.

The necklace is an exceptional gauge of gold and platinum, and is in excellent condition with very clear hallmarks to the push fit clasps.

Additional information

Diamond Quality

Colour (average grades) G/H/I
Clarity (average grades) VVS2/VS2/SI1
Cut Transitional Modern Brilliant Round
Content 6.68 carats

Dimensions

Necklace
Wearing length 35.56cm/14"
Width of setting 2.9cm/1.14"
Height of setting 1.51cm/0.6"

Bracelet
Wearing length 15.8cm/6.22"
Width of bracelet 1.07cm/0.42"

Weight

67.84 grams

Date

Circa 1940

Metal

White Gold

Setting Metal

Platinum

Gemstone

Origin

France

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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