AN IMPORTANT DIAMOND PENDANT The private collection of a Co...

by Adam's Auctioneers
1/2

Estimate

€55,000 - €65,000

Fees


AN IMPORTANT DIAMOND PENDANT

The private collection of a Continental Lady (lot 67 to 71)

* No internet bidding *

Composed of a brilliant-cut diamond within an eight-claw setting, to a graduated marquise-shaped diamond surmount, mounted in 18K gold, diamonds approximately 2.00cts total, length 3cm

Accompanied by a report from the HRD laboratory in Antwerp, stating that the natural diamond weighing 12.29cts, is Fancy Intense Yellow, VS1 clarity. Report no. 260000060317, dated March 17th 2026.

Fancy yellow diamonds are among the best known of coloured diamonds, valued for the richness and warmth of their hue. Far rarer than near-colourless stones, only around one in 10,000 diamonds displays a natural fancy yellow colour. In yellow diamonds, that colour is caused by the presence of nitrogen within the crystal structure. As with all coloured diamonds, intensity is central to desirability, and the Gemological Institute of America grades such stones according to the strength of their hue, with the most vivid examples being the most highly prized.

Among the most celebrated yellow diamonds are the Tiffany Diamond, weighing 128.54 carats, it was discovered in South Africa in 1877 and long associated with Tiffany & Co., having been worn by Audrey Hepburn, Lady Gaga and Beyoncé, and the Oppenheimer Diamond, a remarkable 253.7 carats uncut crystal from the Dutoitspan mine near Kimberley, South Africa, and now held in the collection of the Smithsonian Institution.


More Information

Principal diamond: Accompanied by a report from the HRD laboratory in Antwerp, stating that the natural diamond weighing 12.29cts, is Fancy Intense Yellow, VS1 clarity. Report no. 260000060317, dated March 17th 2026.

Remaining diamonds: approx. 2.00cts, estimated colour F/G, estimated clarity VS-VVS

Stamped 750 for 18K gold

Minor signs of wear, overall in good condition

Total gross weight approx. 6.7g

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

Fees apply to the hammer price:

Free Registration
28.6% inc VAT*

Flat Fee Registration
25.00% inc VAT*

*These fees include buyers premiums and internet surcharges. Other fees may apply.
Please see the auctioneers terms & conditions for more information
+1
By placing an Autobid, our system will automatically bid on your behalf, during the live sale, up to your 'Max Bid'.
Tick "+1" to bid one more increment if bidding is against you.

Other Lots in this Auction

Adam's Auctioneers

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