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Details
KÖCHERT STAR SAPPHIRE AND DIAMOND BROOCH
Cabochon star sapphire, oval brilliant-cut diamonds of 4.01 and 3.50 carats, pear brilliant-cut diamonds of 3.76, 3.03, 2.21 and 1.75 carats, round brilliant-cut diamonds of 1.14, 1.14, 1.13 and 1.12 carats, 18k yellow gold, maker's mark (Köchert)
Gübelin, 2023, report no. 23030194: star sapphire, Sri Lanka (Ceylon), no indications of heating, with Information Sheet on Unheated sapphires
10 GIA reports, 2016-2023: 4.01 to 1.12 carats, D colour, Flawless to VVS2 clarity, excellent polish and symmetry. Three diamonds Type IIa and one Type Ia
Size/Dimensions: 4.0 cm
Gross weight: 27.2 grams
Cabochon star sapphire, oval brilliant-cut diamonds of 4.01 and 3.50 carats, pear brilliant-cut diamonds of 3.76, 3.03, 2.21 and 1.75 carats, round brilliant-cut diamonds of 1.14, 1.14, 1.13 and 1.12 carats, 18k yellow gold, maker's mark (Köchert)
Gübelin, 2023, report no. 23030194: star sapphire, Sri Lanka (Ceylon), no indications of heating, with Information Sheet on Unheated sapphires
10 GIA reports, 2016-2023: 4.01 to 1.12 carats, D colour, Flawless to VVS2 clarity, excellent polish and symmetry. Three diamonds Type IIa and one Type Ia
Size/Dimensions: 4.0 cm
Gross weight: 27.2 grams
Provenance
New York, 17 October 2018, lot 9
Original brooch by J.E. Caldwell & Co., mounted with old European-cut diamonds
Redesigned by Köchert in 2021
Original brooch by J.E. Caldwell & Co., mounted with old European-cut diamonds
Redesigned by Köchert in 2021
Special notice
This lot is subject to standard Swiss VAT rules and 7.7% VAT will be charged on the ‘hammer’ and the ‘buyer’s premium’
Further details
Please note that some of these reports are over five years old and may require updates.
Brought to you by
Max Fawcett
Head of Department