Antique Edwardian Onyx Sapphire and Diamond Reversible Swivel Stick Pin
A Rare Hexagonal Edwardian Jewel with Two Contrasting Gem-Set Faces
This exceptional antique stick pin, dating to the Edwardian period, features an ingenious reversible swivel construction that reveals two distinct jeweled faces within a finely engineered hexagonal frame.
One side presents a dramatic composition of calibré-cut black onyx framing an inner arrangement of sparkling old-cut diamonds. Rotating the jeweled head reveals the reverse—a brighter sapphire and diamond composition arranged in concentric geometric borders.
Fine milgrain edging outlines the different sections, emphasizing the crisp hexagonal geometry while introducing the delicate surface detail associated with Edwardian jewelry. The contrast between the black onyx, richly colored sapphire, bright old-cut diamonds, cool white-metal setting, and warm gold pin shaft gives the piece remarkable visual depth.
The swivel mechanism allows the wearer to alternate between a dark, graphic onyx presentation and a more brilliant sapphire-and-diamond face. Elegant, versatile, and mechanically sophisticated, it may be worn on a lapel, tie, cravat, or scarf.
Key Features
• Period: Edwardian, circa 1900–1915
• Type: Reversible swivel stick pin
• Shape: Hexagonal
• Gemstones: Black onyx, sapphire, and old-cut diamonds
• First Face: Calibré-cut black onyx and old-cut diamonds
• Reverse Face: Sapphire and old-cut diamond arrangement
• Design: Concentric geometric borders
• Detail: Fine milgrain edging
• Construction: Rotating double-faced jeweled head
• Metal: White-metal jeweled setting with a gold pin shaft
• Condition: Excellent estate condition
• Perfect for: A lapel, tie, cravat, scarf, or important antique stick-pin collection
Collector’s Note
Reversible swivel stick pins are considerably less common than conventional fixed-head examples because they required both sophisticated engineering and two carefully finished decorative faces.
This example is especially striking for its architectural hexagonal form and the dramatic contrast between black onyx, sapphire, and old-cut diamonds. Its two presentations allow the jewel to shift from understated and graphic to brilliant and formal, reflecting the versatility and refinement of Edwardian accessories.
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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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