




















Antique Cartier Amethyst & Diamond Convertible Brooch/Pendant – 1885
An extraordinary example of late 19th-century Cartier artistry, this documented 1885 creation from my grandmother’s collection is a true museum-worthy treasure. Handcrafted in the opulence of the Belle Époque era, the piece showcases a central, richly saturated emerald-cut amethyst, framed by four oval-cut amethysts of equal vibrancy. Sparkling old mine-cut diamonds accent the composition, adding brilliance to the regal purple tones.
Set in warm, buttery 18K yellow gold with platinum-topped details, this jewel is a rare convertible design, functioning as both a brooch and a pendant. The workmanship is unmistakably Cartier—precise, elegant, and imbued with the romance of a bygone age.
Details:
Maker: Cartier (documented in original family notes, 1885)
Era: Belle Époque / Victorian crossover
Metals: 18K Yellow Gold with Platinum-topped settings
Gemstones:
1 emerald-cut amethyst, approx. 15+ carats
4 oval-cut amethysts, approx. 5 carats each
4 old mine-cut diamonds, approx. 0.25 carats each
Convertible: Wear as brooch or pendant
Provenance: Passed down through generations, with written documentation from original owner’s notes
Estimated Value: $38,000
A once-in-a-lifetime acquisition for the serious collector, this heirloom-quality jewel offers not just beauty, but history—linking you directly to the grandeur of 19th-century Parisian design.
An extraordinary example of late 19th-century Cartier artistry, this documented 1885 creation from my grandmother’s collection is a true museum-worthy treasure. Handcrafted in the opulence of the Belle Époque era, the piece showcases a central, richly saturated emerald-cut amethyst, framed by four oval-cut amethysts of equal vibrancy. Sparkling old mine-cut diamonds accent the composition, adding brilliance to the regal purple tones.
Set in warm, buttery 18K yellow gold with platinum-topped details, this jewel is a rare convertible design, functioning as both a brooch and a pendant. The workmanship is unmistakably Cartier—precise, elegant, and imbued with the romance of a bygone age.
Details:
Maker: Cartier (documented in original family notes, 1885)
Era: Belle Époque / Victorian crossover
Metals: 18K Yellow Gold with Platinum-topped settings
Gemstones:
1 emerald-cut amethyst, approx. 15+ carats
4 oval-cut amethysts, approx. 5 carats each
4 old mine-cut diamonds, approx. 0.25 carats each
Convertible: Wear as brooch or pendant
Provenance: Passed down through generations, with written documentation from original owner’s notes
Estimated Value: $38,000
A once-in-a-lifetime acquisition for the serious collector, this heirloom-quality jewel offers not just beauty, but history—linking you directly to the grandeur of 19th-century Parisian design.