A large Art Deco black opal and diamond brooch. The oval sha...

1/5

Hammer

£19,000

Fees

A large Art Deco black opal and diamond brooch. The oval shaped black opal displaying a fine play of colours. Within a brilliant diamond and square-cut diamond and platinum setting. 

Complete in a J W Benson fitted tooled red leather case. 

The stone approximately 28mm long x 18mm wide x 8 mm maximum depth and approximately 18-22 carats. The diamonds approximately 4 carats and GHI colour, VS clarity. 

Provenance:
Margaret Hilda Thatcher, Baroness Thatcher, LG, OM, DStJ, PC, FRS, HonFRSC (13 October 1925 – 8 April 2013);
Thence by descent

Total weight 16.77 grams
Dimensions 58 mm long x 22mm wide

Closed
Auction Date: 6th Feb 2025 at 10:30am

Fees apply to the hammer price:

Room and Absentee Bids:
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1000001+: 24% inc VAT*
Online and Autobids:
1 to 1000000: 31.8% inc VAT*
1000001+: 24% inc VAT*
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1 to 1000000: 31.8% inc VAT*
1000001+: 24% inc VAT*
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Sale Dates:
Thu 6th Feb 2025 10:30am (Lots 1 to 741)