Congratulations! Your order qualifies for free shipping You’re only $99 away from free worldwide shipping 🌏

Pay later with Afterpay & Zip

★★★★★

"Fast shipping and easy to use ring sizer. Thank you."

- Clara

Professional ring sizer tool for accurate jewelry sizing with adjustable measuring bands in soft lighting
Ring Measurement Tool - Rings by Belle Fever

Ring Sizer

Regular price $3
Taxes included.

The moment they open this… they’ll never forget it.

Trust badges

Ring Sizer by Belle Fever is a simple, accurate ring measurement tool designed to help you find the perfect ring size before placing your order — no measuring tape, no ruler, no guesswork.

Whether you’re buying a ring as a surprise gift and need to figure out your loved one’s size, or you’re ordering for yourself and want to get it right the first time, add the Ring Sizer to your order for just $2 and we’ll make sure your ring fits perfectly.

How does the Ring Sizer work?

Simply add the Ring Sizer to your order and we’ll send it to you. Slip it onto your finger (or your loved one’s finger) to find the correct size, then place your ring order with confidence. It’s the easiest way to ensure a perfect fit every time.

Do I need a Ring Sizer if I’m buying a ring as a gift?

Yes — if you’re buying a ring as a surprise gift and you’re unsure of the recipient’s size, we strongly recommend adding a Ring Sizer to your order first. Getting the size right avoids the need for resizing or exchanges later.

Can I order the Ring Sizer on its own?

Yes — you can add the Ring Sizer to any order or purchase it on its own for just $2. Once you have your size, come back and order your perfect Belle Fever ring.

Secure & trusted checkout 🔒

We accept all major payment methods:

  • Visa & Mastercard
  • Shop Pay

Buy now, pay later available:

  • Afterpay
  • Zip

Options shown at checkout based on your location.

Need help? We’re here

We usually reply within a few hours.

Ring Sizer

$3

For the moments words aren’t enough

  • When “I love you” doesn’t feel like enough
  • When you want them to feel truly seen
  • When the moment actually matters
Two hands holding a gold necklace with 'Married' engraved on it, against a blurred indoor background.

We make it right

If it’s not perfect, we’ll remake it.

You’re never stuck

Real support, real people.

Made to last

Premium materials + warranty.

Slide image

Perfect for birthdays, anniversaries, and “just because” moments.

Ready to gift, straight out of the box

Every piece arrives beautifully packaged, so you can give a meaningful gift without the stress.

No wrapping. No guesswork. Just a moment they’ll remember.

Made to last, without the fading

Unlike traditional jewellery that fades over time, your piece is crafted to keep its shine.

No tarnishing. No irritation. Just something they can wear every day.

Built for everyday moments, not just special occasions.

Slide image
Slide image

As seen in

“Over 25,000 customers trust Belle Fever to create meaningful gifts”

Slide image

Made for moments that matter

Real moments from our customers

This ring sizer is highly practical and easy to use for determining accurate ring sizes. Customers said it's "true to size" and "much easier than trying to measure any other way." Fast shipping and excellent service consistently praised. Eliminates sizing worries when buying rings online. Some reviews mention jewelry purchases instead.

  • 5 stars: 67 (96%)
  • 4 stars: 3 (4%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Y
Yvonne T. (Brisbane, AU)

Ring. Sizer we come in handy, I will know what size ring to get.

A
Alex

Just as pictured

M
Maggie

Perfect

M
Morgan W. (Perth, AU)
Ring Sizer

Ring sizer is true to size for Belle Fever ring sizing. Much easier than trying to measure your size any other way.

C
Candice B. (Sydney, AU)
Grandma's 80th gift

Beautiful piece of jewellery. My grandmother loved it with all the names on there, husband (r.i.p) herself, her children, grandchildren and great-grandchildren with our birthstones

C
Camila M.M. (Brisbane, AU)
Ring Measurement

Love it! Takes my worries away when buying a new ring. If you don't know your beloved ones ring size, This is a very useful product.

S
Sarah H. (Auckland, NZ)
Beautiful beyond words

Honestly speechless seeing the necklace we ordered for our daughter - it's more beautiful than we had imagined.

Side note: we also ordered the gift box and it's a really special way to present the gift - its gorgeous and feels very regal opening it. Would recommend buying a gift box if you're ordering as a gift as it really increases the awesomeness of the unwrapping experience.

R
Raylene D.P. (Bunbury, AU)
Fantastic Service

I have purchased a couple of items now. The service is always amazing and the items are lovely.
Highly recommend.

T
Tiana R. (Perth, AU)
Ring measurement tool

I had been looking for one of these for ever as I am always un sure of what ring size I am, and typically I buy online. I give it ⭐️⭐️⭐️⭐️⭐️ As I have already used it numerous times. Thank you.

K
Kristina A. (Mascot, AU)
Incredible

Absolutely beautiful, the necklace i got for my mum was personalised and was absolutely beautiful, i know she will love it and will probably cry.

J
Jas B. (Melbourne, AU)
Thank you

We ordered a simple necklace with initial pendant and birthstone, this was a special gift for young daughter, she absolutely loves it and we’re very happy with it. Thank you.

S
Sarah G. (Melbourne, AU)
Love

Love my rings thank you 🥰

H
Halina S. (Gisborne, AU)
Wonderful

Excellent service, beautifully presented and made , very happy😊

J
Jazmine A. (Brisbane, AU)
Love all the jewellery I ordered

I have ordered a couple of jewellery from here, and love every single one.

S
Sheree J. (Brisbane, AU)
Love it

Awesome

T
Tarryn R.

Ring Measurement Tool

L
Linnet H. (Melbourne, AU)
Ring sizer what a great tool

Loving the ring sizer now pick that special ring

Y
Yvonne C. (Sydney, AU)
Belle Fever Fan Forever

I absolutely LOVE Belle Fever, so much so I won’t buy from anyone else. The quality is HIGH, the pieces are PERSONAL and very BEAUTIFUL and much LOVED. Having options of Silver, Gold or Rose Gold(my fav) is GREAT. I have several pieces and I’m awaiting 2 more and I also have a special request I’m waiting to hear back about. Don’t bother wasting time with anyone else just let Belle Fever take care of your needs. ⭐️⭐️⭐️⭐️⭐️

A
Anita B. (Carnegie, AU)
Very happy

I’m very satisfied with my purchases and my friend loved the necklace I bought her.

N
Natasha (Sydney, AU)
Leather bracelet with names

My partner LOVES his Fathers day gift. Not only is it completely personal, but it is well made and looks great. The correspondence from BelleFever was constant and clear. Don't hesitate, buy something wonderful from this store!!

C
Clara (Auckland, NZ)
Ring sizer

Fast shipping and easy to use ring sizer. Thank you

M
Melissa C. (Doonside, AU)
Birthday gift design.

As always another perfect design and experience. Never disappointed Shen I make a custom order. Great service, quality and pricing

H
Harata T. (Auckland, NZ)
Beauitful

Was very pleased with my purchase and also the fast reply for when I would ask questions. Reccommended Belle Fever to everyone :)

I
Ingrid A. (Brisbane, AU)

Ring Measurement Tool

L
Lisa A. (Sydney, AU)
exceptional

if there were more stars I would give them
very very happy

L
Louise W. (Doonside, AU)
Fine a ring size

Postage was quick

S
Suzanne Y. (Drummoyne, AU)
SUZANNE yule

Love the stuff

J
Jodie H. (Werrington County, AU)
Ring measurement tool

Can’t wait for my next purchase

D
Di M.
It was a lovely ring

It was a lovely ring sizer thank you

B
Beatriz L.
Greatly useful

Greatly useful

B
Belinda A.
Very handy!

Very handy!

M
Makayla G.
Worked Perfect to be able

Worked Perfect to be able to size my ring size

R
Rebecca W.
Perfect. Thank you

Perfect. Thank you

Everything you need to know before ordering

How long will my order take?

Every piece is made just for you

  • Engraved designs: 5–7 business days
  • Custom cut designs: 2–3 weeks

Once completed, your order is shipped with tracking.

Please note: production time does not include shipping.

Will my jewellery tarnish?

No - your piece is designed to last.

We use our exclusive Monel Silver, which is:

  • Non-tarnishing
  • Hypoallergenic
  • Safe for sensitive skin

Unlike traditional jewellery, it won’t fade or lose its shine over time.

What if I don’t love it?

We want you to absolutely love your piece 💜

If it’s not quite right, we’ll work with you to make it perfect.

  • 100% Love It Guarantee
  • 365-day warranty on craftsmanship

You can shop with confidence knowing we’re here for you.

How is it packaged?

Every piece arrives ready to gift

Your jewellery comes in our signature luxury display wallet, designed to make the moment feel special from the second it’s opened.

Because the experience matters just as much as the jewellery itself.

Do you ship worldwide?

Yes - we ship worldwide

  • Free shipping on orders $99+
  • Standard & express options available at checkout

All orders include tracking so you can follow your piece every step of the way.

Can I get my order sooner?

If you need your order urgently, we’ll always do our best to help.

Reach out via live chat and we’ll see what’s possible.

A Personal Message From Sarah, Founder.

How Belle Fever Was Born

Growing up in a family with three girls...

It was my dream to have a personalised name necklace.

But when I finally received it from my parents, the sterling silver quickly tarnished and only years later as this happened with every jewellery, I found that it was my acid skin.

It felt unfair, but this drove me to find that solution: Monel Silver.

This eventually started Belle Fever.Something I wish existed for my younger self.

Slide image

Need help?

Questions before ordering?
Chat with us

Shipping & Delivery

Made to order with care
View timelines

Flexible payment available

Pay securely with major cards or split your purchase over time.

How it’s made

Crafted just for you
Watch how it works


4.9★ Rated by 25,000+ customers

Slide image

Made & Owned in Australia

Non-tarnish & hypoallergenic

Secure checkout