Cartier Belle Époque Diamond Sapphire Circle Stick Pin by Henri Picq

Cartier Platinum Gold Diamond & Sapphire Circle Stick Pin by Henri Picq, c. 1905–1915

An exceptional Belle Époque Cartier stick pin, crafted in platinum and attributed to the Parisian workshop of Henri Picq. Designed with a refined double-sided circular motif, set with diamonds on one side and sapphires on the other.

This remarkable Cartier stick pin was created during the Belle Époque, a period celebrated for its refinement, technical innovation, and artistic restraint. Crafted in platinum — the preferred metal of the era for its strength and delicacy — the piece reflects the airy elegance and precision that defined early 20th-century French jewelry.

The circular motif is perfectly balanced and finely executed, embodying the sophisticated geometry that emerged at the turn of the century. The use of platinum allowed jewelers to create light yet durable mountings, enhancing the brilliance of the gemstones while maintaining structural finesse.

Attributed to the esteemed Parisian workshop of Henri Picq, a known supplier to leading houses including Cartier, this piece carries both artistic and historical significance. Picq’s atelier was recognized for its meticulous craftsmanship and technical excellence, producing jewels of the highest standard for prestigious maisons.

Most distinctive is its double-sided construction. One face is set with shimmering diamonds, offering radiance and luminosity. The reverse is adorned with richly colored sapphires, creating a refined contrast and allowing the wearer to alternate between two elegant expressions. Such reversible designs reflect the discreet luxury appreciated by Belle Époque clientele.

This jewel stands as a testament to the collaborative brilliance between Cartier and one of its finest workshop craftsmen, representing a rare and highly collectible example of French high jewelry from one of the most elegant periods in design history.

Key Features

• Maker: Cartier

• Workshop Attribution: Henri Picq (H.P. hallmark)

• Period: Belle Époque, circa 1905–1915

• Metal: 18K Gold (French eagle’s head hallmark)

• Gemstones:

  • One side set with diamonds

  • Reverse set with sapphires

• Design: Double-sided circular motif

• Hallmarks:

  • French eagle’s head for 18K gold (750/1000)

  • Maker’s mark “H.P.” for Henri Picq

• Origin: France

• Category: Fine Stick Pin / Lapel Pin

Why This Piece Matters

Jewelry bearing both a Cartier signature and the workshop mark of Henri Picq represents an important chapter in early 20th-century French high jewelry production. The combination of Belle Époque elegance, platinum craftsmanship, and reversible gemstone design makes this stick pin not only aesthetically refined, but historically significant.

A distinguished addition to any serious collection of Cartier or Belle Époque jewels.

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