Platinum Ruby Onyx and Diamond Jabot

Platinum Ruby Onyx and Diamond Jabot

Article

1157817

Location

New York, United States

Closing at

April 29, 2025

Category

Brooch

Brand

Cartier

Year of Production

1920

Material

Platinum

Gross Weight

8.4 g

Stone Weight

Ruby 2.25 ct, Diamond 1.00 ct

Gemstone

Ruby, Diamond

Gender

Women

Reference Number

03575

Description

Platinum jabot brooch by Cartier, France, circa 1920, set with one oval sugar loaf cabochon ruby approximately 2.25 carats, one oval and two rectangular sugar loaf cabochon rubies, 12 old European and 11 single-cut diamonds totaling approximately 1.00 carat, and accented with black onyx. Signed Cartier, Made in France, Bte SGDG, no. 03575, with maker’s mark (partially obscured) and French assay marks. Gross weight approximately 8.4 grams. Accompanied by AGL report no. 1145947 stating the larger ruby was tested in mounting, Burma (Myanmar) origin, with no gemological evidence of heat or clarity enhancement.

Provenance

No provenance provided
Estimates: $15,000 – $20,000

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