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4.8/5.0 based on 5100+ reviews

Croissant Ring

$150.00 $0.00 ÉCONOMISEZ 100%
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Perfect Fit Guarantee - free resize on every piece

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Lifetime Warranty - honored for life, guaranteed

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The allure of Paris, a timeless sparkle

The Croissant Ring features a structural and softly curved design inspired by the buttery layers of a French croissant. This elegant and unique ring is an item that adds Parisian elegance to your everyday style.

Reasons to love this ring:

  • Structural croissant design – Stylish and eye-catching
  • Comfortable fit – Soft interior for all-day comfort
  • Versatile style – Perfect worn alone or stacked with other rings
  • Modern charm – A classic design with a contemporary twist

We create rings designed to last a lifetime- and we stand behind that promise. You can wear your ring every day with confidence, knowing it’s fully covered. If anything ever goes wrong, we’ll replace it - simple as that.

Every order is tracked & protected- lost or damaged? We’ll send a new one for free.

You’ll receive your tracking number as soon as your order ships, with delivery straight to your door.

Ships within 1–2 business days.
Delivery in 4–7 business days.

Not sure about your size? No worries.If the fit isn’t perfect, we’ll send you a free replacement - simple as that. You can even order one size up to be 100% sure, since we include free resizing so your piece fits perfectly.

Add Another Ring — It's Free Too

6 products
Silver Sapphire Halo Ring

Silver Sapphire Halo Ring

$0.00 $150.00
Gold Ruby Heart Ring

Gold Ruby Heart Ring

$0.00 $160.00
Silver Sapphire Teardrop Necklace

Silver Sapphire Teardrop Necklace

$0.00 $155.00
Silver Sapphire Halo Hoop Earrings

Silver Sapphire Halo Hoop Earrings

$0.00 $155.00
Silver Sapphire Floral Link Bracelet

Silver Sapphire Floral Link Bracelet

$0.00 $160.00
Gold Crisscross Pearl Stud Earrings

Gold Crisscross Pearl Stud Earrings

$0.00 $160.00
📏 Size & Fit Guide ▾

Find your ring size below — and remember, every William & Kimberly piece includes free resizing for life, so it always fits.

Ring Size Chart

US SizeUKInside Ø (mm)Circumference (mm)
5J½15.749.3
6L½16.551.9
7N½17.354.4
8P½18.157.0
9R½18.959.5
10T½19.862.1
11V½20.664.6
12X½21.467.2

How to Measure at Home

  1. Wrap a strip of paper or string snugly around the base of your finger.
  2. Mark where it overlaps, then measure that length in millimetres.
  3. Match the circumference to the chart above to find your size.

Between sizes? Choose the larger — we’ll resize it to fit, free, for life.

4 Reasons to Fall in Love with William & Kimberly

Swipe through — this is what built our reputation over the years.

Solid Gold & Sterling Silver 1

Solid Gold & Sterling Silver

Real precious metal — solid sterling silver and genuine 18K gold, never hollow and never cheap plating. Real weight and a premium feel the moment it's in your hand.

Hand-Set Genuine Gemstones 2

Hand-Set Genuine Gemstones

Genuine sapphires, rubies, emeralds and pearls, hand-set one piece at a time — the way fine jewellery should be made.

Made to Last a Lifetime 3

Made to Last a Lifetime

Finished to hold its shine through real, everyday life. Timeless pieces you'll reach for again and again, year after year.

Backed for Life 4

Backed for Life

Every piece carries our lifetime warranty, a free resize and a 60-day money-back guarantee — even now that they're free. Own it, wear it, keep it for good.

Why We're Closing Our Doors
Our Story

Why We're Closing Our Doors

For over thirty years, William and Kimberly shared one passion — creating fine jewellery by hand. Rings, necklaces, earrings and bracelets in solid gold and sterling silver, each piece set with genuine gemstones and finished at our bench, one at a time.

After all these years, we've decided it's time to close our doors for good.

Now it's time to hang up our loupe. We're closing our little shop to finally spend our days with our children and grandchildren — and to take the first holiday we've promised each other for years. Rather than box up the beautiful pieces we have left, we'd far rather see them worn and loved. So until the very last one is gone, every piece is free — you only cover the shipping.

It's a genuine farewell, with real, limited stock. Once it's gone, it's gone. Thank you to everyone who has worn a William & Kimberly piece over these years. — William & Kimberly

— William & Kimberly

William & Kimberly vs. Other Brands

William & Kimberly
Other Brands
Solid 925 silver & real 18K gold
Hollow or plated base metal
Real 18K gold & hand-set inlays
Painted-on finishes that flake
Virtually scratch-proof for life
Scuffs, bends and fades in weeks
Lifetime warranty + free resize
No warranty, no resize
60-day money-back guarantee
All sales final
Every piece free — you only pay shipping
Full price, every day
A note from the workshop

⚠️ Beware of Cheap Imitations

Now that we're giving these pieces away, copycats have started passing off cheap, hollow look-alikes as the real thing — thin plated pieces that bend, discolour and turn your skin green within weeks.

Every genuine William & Kimberly piece is crafted in solid sterling silver or 18K gold, set with genuine gemstones by hand, and backed by our lifetime warranty. If it wasn't bought here, we can't promise it's the real thing — or that it'll last a lifetime the way ours do.

— The William & Kimberly Workshop

100,000+ Customers Love Our Craftsmanship

See what our happy customers have said over the years.

ugc review 1

My husband surprised me with the pendant for our 40th anniversary — I actually teared up when I opened the box. It hasn't left my neck since.

Margaret H.

ugc review 2

I've worn this ruby ring every day for a month and it still catches the light the way it did the first morning. Real weight, real gold.

Barbara J.

ugc review 3

Bought the sapphire earrings for my daughter's wedding and ended up wearing them myself. Elegant without being fussy.

Denise C.

ugc review 4

The bracelet arrived beautifully boxed with a handwritten note. You can tell this shop was built with love over a lifetime.

Susan D.

ugc review 5

We ordered together — a necklace for her, a keepsake for me. So glad we found William & Kimberly before they closed their doors.

Anne & Robert T.

ugc review 6

At my age I don't buy much jewellery any more, but this one felt special. Real gold, a real stone, and it arrived quickly.

Patricia L.

Don't Just Take Our Word For It

  • Margaret H. Verified Buyer
  • Barbara J. Verified Buyer
  • Anne & Robert T. Verified Buyer

    Lifetime Craftsmanship Warranty

    Every piece comes with a lifetime craftsmanship warranty. If you don’t love it, return it for a full refund – no questions asked.

    FAQs

    Not sure about your ring size? Click here to download our printable sizer helper and find your perfect fit.
    And if it’s not just right, we’ll replace it for free - no questions asked.

    Not sure about your size? No worries. If the fit isn’t perfect, we’ll send you a free replacement - simple as that. You can
    even order one size up to be 100% sure, since we include free resizing so your piece fits
    perfectly.

    Every piece we make is crafted with care and attention to detail. We handpick the finest materials, and our team personally oversees every step of the process in our workshop.

    Our goal is to create rings that not only look beautiful but also last for years to come.

    We are always here to help! Whether you have a question or just want to chat about my rings, we are available every day of the week.

    My Hours:

    • Mon - Fri: 9:00 AM - 5:00 PM
    • Sat - Sun: 10:00 AM - 4:00 PM

    We do our best to get back to you within 12 hours, but I always strive to respond as quickly as I can.

    📩 Email: support@williamkimberly-boston.com

    We want you to love your ring as much as we loved making it. If for any
    reason it’s not quite right, you can return it within 30 days of
    receiving it. Just send us an email, and we’ll take care of everything.

    We’ve made it simple and secure for you to pay. You can use Amex,
    Maestro, Visa, MasterCard, Apple Pay, Google Pay, and Shop Pay—whatever
    works best for you.

    VOUS AIMEREZ AUSSI