Sterling Silver Polished 4mm Round Box Chain
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- Sterling silver
Ships within 2–3 business days
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- 30-day returns & size exchanges
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The details
A sterling silver round box chain necklace in a 4mm width, made in Italy with a solid construction and a polished finish.
The box chain is one of the oldest and most structurally sound chain styles in fine jewelry, formed from square links connected at right angles to create a flexible yet uniform rope. The rounded variation softens the silhouette while preserving the chain's durability and even drape. Italian chain manufacturing is widely regarded as the global benchmark for precision and finish quality.
Key Features
- Crafted in 925 sterling silver with a polished finish
- Box necklace design
- Measures 4 mm wide and 18 inches long
- Secured by a lobster clasp
- Approximate weight of 29.79 grams
Size & fit
- Length: 18 to 30.
- 16 in sits at the base of the neck · 18 in rests on the collarbone · 20 in falls just below · 24 in lands mid-chest.
Shipping & returns
- Free standard shipping on U.S. orders of $99 and above; under $99 the rate is shown at checkout.
- Orders ship within 2 to 3 business days in insured packaging, with tracking sent by email.
- Faster delivery: USPS Priority Mail and UPS options at checkout, where rates and delivery estimates are shown before you pay.
- Not the right piece, or the wrong size? Return it, or exchange it for another size, within 30 days of delivery. Items must be unworn and in their original condition and packaging.
- Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
Jewelry care
- Sterling silver darkens naturally with air. A silver polishing cloth brings the shine back, and an airtight pouch keeps it there.
- Put jewelry on last, after lotion and perfume, and take it off before showering, swimming or sleeping.
- Store each piece on its own in a soft pouch so it doesn't scratch.

The details
- Metal
- Sterling silver, polished
- Chain length
- 18.0 in
- Pendant size
- 457.2 × 4 mm
- Weight
- 29.84 g
Show all specifications
- Width
- 4.0 mm
- Made in
- Italy
- Item number
- BCX-NSS-63M7-18