ATTRIBUTED TO HARRY WINSTON: A FINE DIAMOND DEMI-PARURE, CIR...

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Estimate

€100,000 - €150,000

Fees

ATTRIBUTED TO HARRY WINSTON: A FINE DIAMOND DEMI-PARURE, CIRCA 1970

* No internet bidding *

Composed of a necklace set at the centre with a series of graduated emerald-cut diamonds bordered by marquise-shaped diamonds, with two concealed clasps to enable the necklace to split into a shorter necklace and a bracelet, with a matching pair of pendant earrings, mounted in platinum, unsigned, bracelet clasp numbered 2 on both ends, necklace lengths 56.3cm and 40cm, bracelet length approximately 16.5cm, pendant earrings length 2.7cm

Accompanied by an insurance valuation from Harry Winston S.A of New York, in Geneva Switzerland at 24, Quai Général Guisan, dated August 6th 1970 and signed by Serge Fradkoff, stating:

Platinum necklace set with:

- 146 marquise-cut diamonds: 49.00cts

- 73 emerald-cut diamonds: 37.83cts

- 12 marquise-cut diamonds: 2.96cts

- 6 square-cut diamonds: 1.49cts

By family repute, the necklace was purchased at Harry Winston in Switzerland and was then transformed by the mother's current owner. Presently 150 marquise diamonds and 77 square/emerald-cut diamonds.

More Information

Diamonds: approx. 90.00cts total, overall estimated colour E/F, overall estimated clarity VVS-VS, approx. 5 diamonds VS2-SI1 due to a small chip or small pit or small nick otherwise only one with a small inclusion under the table al visible under 10x magnification.

We have individually gauged size, estimated colour and clarity for each, for further details, do not hesitate to refer to the department

Accompanied by an insurance valuation from Harry Winston S.A of New York, in Geneva Switzerland at 24, Quai Général Guisan, dated August 6th 1970 and signed by Serge Fradkoff, stating:

Platinum necklace set with:
- 146 marquise-cut diamonds: 49.00cts
- 73 emerald-cut diamonds: 37.83cts
- 12 marquise-cut diamonds: 2.96cts
- 6 square-cut diamonds: 1.49cts

By family repute, the necklace was purchased at Harry Winston in Switzerland and was then transformed by the mother's current owner. Presently 150 marquise diamonds and 77 square/emerald-cut diamonds.

Clasps close securely

Total gross weight approx. 115.5g

+ Calendar 2026-05-12 16:00:00 2026-05-12 23:59:59 Europe/London Fine Jewellery & Ladies Watches Adam's Auctioneers
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Auction Date:
12th May 26 at 4pm BST

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Sale Dates:
Tue 12th May 2026 4pm BST (Lots 1 to 245)