Box Chain Necklace in Sterling Silver, 0.9mm with Extender
Chain length guide

Product information
- Metal925 White sterling silverPolished
- Size20 inChain length
- Weight2.79 gTotal item weight
Description
Solid sterling silver runs through every link of this box chain, so the bright white finish polishes back to full shine whenever it needs it. Square links joined corner to corner give the chain a precise geometric structure that lies flat and catches light evenly, clean and considered from every angle.
Made in Italy, the chain meets the careful production standards the country applies to fine sterling silver work. A polished surface, a secure spring ring clasp, and an adjustable extender at the clasp make this a piece that works as well on its own as it does paired with a pendant.
Key Features
- Crafted in 925 sterling silver with a polished finish
- Box necklace design
- Measures 0.9 mm wide
- Available in 20 and 26 inch lengths
- Weight varies by size, from approx. 2.79 to 3.69 grams
- Secured by a spring ring clasp
Why You’ll Love It
- Solid sterling silver polishes back to a bright, lasting shine.
- Square links lie flat and smooth against the skin all day.
- The extender adjusts the fit without any tools.
- Made in Italy to exacting fine silver standards.
Perfect For
A clean, versatile chain that suits everyday wear and dresses up just as naturally for an anniversary or a special occasion. It works for any adult who appreciates understated jewelry, and it makes a thoughtful gift for someone who loves a minimalist look or needs a reliable chain for a favorite pendant.
Product details925 white sterling silver · 2.79 g
Metal
- Metal
- White sterling silver
- Purity
- 925
- Finish
- Polished
- Coating
- Anti-tarnish
- Construction
- Solid
- Made by
- Cast
Measurements
- Pendant length
- 508.0 mm
- Pendant width
- 0.9 mm
- Chain length
- 20 in
- Chain width
- 0.9 mm
- Clasp
- Spring Ring
- Weight
- 2.79 g
- Extender
- 2 in
Style & design
- Necklace type
- Chain Styles
- Chain style
- Box
- Style
- Minimalist
More
- Made in
- Italy
- Item #
- SJQG-QBX019E-18
Our standards
- Stamped with its metal type (e.g. 14K, 925)
Length & fitLength guide · 30-day length exchanges

If the length isn’t right, you can exchange it within 30 days of delivery.
Shipping & returnsFree insured shipping over $99 · 30-day returns
Free, insured shipping on US orders of $99 or more.
Return it within 30 days of delivery, unworn and in its original packaging.
Exchange it within 30 days for another size or another piece.
Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
What’s in the boxYour necklace in our signature blue padded gift box
- Your necklace
- Our signature blue padded jewelry gift box
- A packing slip with no prices on it
Jewelry careStore each piece on its own in a soft pouch
Store each piece on its own in a soft pouch or lined box, so nothing scratches it.

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Sterling Silver Necklaces, answered
Straight answers about sterling silver necklaces. See all Sterling Silver Necklaces
- Free Shipping
- US Orders $99+
- Exchanges
- 30 Days
How do I choose between thin and thick sterling silver chains?
Choose by how visible you want the chain to be. Thin chains around 1mm suit everyday wear and layering, and they carry a small pendant well. Wider styles like the 4mm to 5mm rope, curb, and wheat chains stand on their own as a bold statement piece.
What length of sterling silver necklace should I pick?
Pick 16 to 18 inches for a classic collarbone fit. Chains here run from chokers near 12.5 inches to long styles of 30 inches or more. Shorter lengths sit at the neck, while 24 inches and longer can be worn over knitwear or doubled up.
What is the difference between Spiga, Franco, and snake chains?
Each name describes how the links are built. Spiga (wheat) chains have a braided, textured look, Franco chains are flat and dense with diamond-cut sparkle, and snake chains are smooth and round. Cable and rolo chains show visible, separate links.
What affects the price of sterling silver necklaces?
Chain width, length, and any stones drive the price. Wider, longer chains use more silver, and diamond or pearl pieces cost more than plain chains. Rhodium plating and diamond-cut finishing also play a part. Use the Price filter on this page to set a budget.
Which sterling silver necklace styles are most popular?
Chains lead the list, especially Forzantine, rolo, and Spiga styles. Pearl necklaces, Franco chains, flat cable chains, and cubic zirconia chokers follow close behind. Many shoppers pick a simple chain first and add pendant styles later, so layering pieces stay easy to build over time.
How do I keep a sterling silver necklace from tarnishing?
Store it dry and away from air when not worn. Keep it in a sealed pouch, wipe it with a soft cloth after wearing, and take it off before swimming or cleaning. See our jewelry care page for more tips.