Cartier New York Art Deco Sapphire and Diamond Platinum Stick Pin
Cartier Art Deco Sapphire and Diamond Stick Pin
An exceptional Cartier New York Art Deco stick pin, crafted in platinum and set with alternating old European-cut diamonds and calibré-cut sapphires in a perfectly graduated, tapering design. The precision of the mounting — where each stone fits seamlessly within its platinum channel — exemplifies the architectural harmony and geometric sophistication for which Cartier was celebrated during the 1920s.
The intense royal-blue sapphires contrast vividly with the brilliance of the diamonds, creating a dynamic interplay of light and color. Sleek, refined, and impeccably balanced, this design captures the modern elegance of the Jazz Age — an era defined by innovation, glamour, and style.
Engraved “Cartier N.Y.” on the reverse, this rare jewel reflects the distinctive craftsmanship of Cartier’s American workshops, renowned for their technical excellence and forward-thinking aesthetic. Originally designed as a gentleman’s accessory, it stands today as a superb example of Cartier’s Art Deco mastery and timeless artistry.
Period: Art Deco, circa 1920s
Maker: Cartier New York
Materials: Platinum, Diamonds, Sapphires
Gem Cuts: Old European-cut diamonds and calibré-cut sapphires
Engraving: Cartier N.Y.
Condition: Excellent vintage condition
Provenance: Cartier, New York
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The DSF Promise
Buy with confidence. Every piece is backed by:
• Authenticity — examined and verified before listing
• Condition — carefully inspected and honestly described
• Insured shipping — fully insured, signature required
• 32-day returns — available on eligible, unaltered items
• Private appointments — available in New York
• Experience — over 50 years of fine jewelry expertise
How do I know a piece is authentic, and can I trust DSF?
Buying fine jewelry online takes trust, especially at this level. DSF Antique Jewelry is a New York–based dealer with over 50 years of fine jewelry expertise. Every piece is examined for authenticity and condition before it is listed — we assess hallmarks, maker's marks, metal content, gemstones, and construction consistent with the stated period or designer. For signed pieces such as Cartier, Buccellati, or Van Cleef & Arpels, we verify maker's marks and signatures. We're glad to send additional photographs of any hallmark, or speak with you directly, before you decide.
Why does antique gold look different, and is surface wear normal?
Antique pieces were often made in gold standards less common today, such as 15ct (used in Britain only between 1854 and 1932), 9ct, or higher-karat continental gold, which give a warmer tone than typical modern 14k. Light surface wear, softened edges, and a gentle patina are normal and expected on antique jewelry — they reflect the age and authenticity of the piece, not flaws. We describe the true condition of every item honestly in its listing.
What do the hallmarks and maker's marks mean?
Hallmarks are small stamped marks that identify the metal standard, and often the maker, assay office, and date. They are one of the best tools for authenticating antique jewelry. We identify and explain the marks we find on each piece in its description, and we're happy to send close-up photographs of any hallmark on request so you can see exactly what you're buying.
Can pieces be resized or adjusted?
It depends on the piece. Many antique rings can be resized, but bands with all-around engraving, thin shanks, or gemstones near the base may be limited in how far they can safely go, and some pieces are best left as-is to preserve their integrity. We list each item's measurements as they currently are. If you're unsure whether something can be safely adjusted, contact us before buying and we'll give you an honest assessment for that specific piece.
How should I care for and store fine jewelry?
Clean gently with a soft cloth, avoid harsh chemicals, ultrasonic cleaners, and chlorine, and store pieces separately so they don't scratch one another. Remove rings and bracelets for heavy manual tasks. Antique gold is softer than modern alloys, so period pieces are best enjoyed with normal care. Treated well, fine antique jewelry lasts for generations — many of our pieces are already a century or more old and still beautiful.
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