French Ruby Diamond 18K Gold Necklace with Detachable Pendant
French Ruby & Diamond Necklace with Detachable Pendant – 18K Gold
French ruby and diamond necklace in 18K yellow gold featuring 420 brilliant diamonds and vivid cabochon rubies, completed with a striking detachable diamond pendant.
An exceptional example of French high jewelry craftsmanship, this elegant necklace combines radiant diamonds with richly colored rubies in a graceful floral design. Crafted in 18K yellow gold and weighing approximately 71.6 grams, the jewel is both luxurious and beautifully balanced when worn.
The necklace is set with 420 round brilliant-cut diamonds totaling approximately 9.11 carats, graded F color and VS2 clarity, giving the piece remarkable brilliance and refinement. Each delicate floral motif is centered with a natural cabochon ruby, creating a rhythmic and elegant composition along the necklace.
In total, the necklace features 20 natural cabochon-shaped rubies weighing approximately 3.00 carats, their smooth surfaces providing a striking contrast to the sparkle of the diamonds.
At the center sits a dramatic detachable pendant, crafted in 18K yellow gold and weighing approximately 16.3 grams. The pendant is set with 93 round brilliant diamonds totaling approximately 6.00 carats, also graded F color and VS2 clarity. Two additional cabochon rubies weighing approximately 2.50 carats complete the pendant, echoing the ruby accents of the necklace.
Thanks to its detachable design, the jewel offers two elegant ways to wear it: as a dramatic statement necklace with the pendant attached, or as a refined ruby and diamond floral necklace without it.
The piece bears authentic French hallmarks, confirming its origin and quality, and beautifully represents the artistry and precision long associated with French jewelry design.
Key Features
• Exceptional French ruby and diamond necklace
• Crafted in 18K yellow gold
• Elegant floral motif design
• Total necklace weight: 71.6 grams
• Detachable diamond pendant
• 420 round brilliant diamonds – approx. 9.11 carats
• 93 round brilliant diamonds – approx. 6.00 carats
• Diamond quality: F color, VS2 clarity
• Total diamond weight: approximately 15.11 carats
• 20 cabochon rubies in necklace – approx. 3.00 carats
• 2 cabochon rubies in pendant – approx. 2.50 carats
• Authentic French hallmarks present
Technical Specifications
• Origin: France
• Metal: 18K Yellow Gold
• Necklace Weight: 71.6 grams
• Pendant Weight: 16.3 grams
• Diamonds (Necklace): 420 round brilliant – approx. 9.11 carats
• Diamonds (Pendant): 93 round brilliant – approx. 6.00 carats
• Diamond Color: F
• Diamond Clarity: VS2
• Rubies (Necklace): 20 cabochon rubies – approx. 3.00 carats
• Rubies (Pendant): 2 cabochon rubies – approx. 2.50 carats
• Hallmarks: French hallmarks present
• Condition: Excellent vintage condition
A remarkable jewel combining vibrant rubies, luminous diamonds, and refined French craftsmanship, ideal for collectors and admirers of exceptional high jewelry.
Vintage & Antique Necklaces
ADDITIONAL DETAILS
Email us or give us a call: (929) 316-2746. For our shipping and refund policy please see our terms & conditions.
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.
Choose options