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Find My Ring Size

Getting your ring size right matters, especially for a piece that's crafted just for you. This guide gives you three reliable ways to find your size, plus our complete Australian size chart with international conversions.

Three Ways to Find Your Size

1. Measure a ring that already fits

The most accurate at-home method. Take a ring that fits the intended finger well, lay it on a ruler, and measure the inside diameter in millimetres (inner edge to inner edge, across the widest point). Match it against the chart below.

2. Measure your finger

Wrap a strip of paper or a piece of string snugly around the base of your finger, mark where it overlaps, then measure the length in millimetres against a ruler. That's your inside circumference. Find it in the chart below, and measure two or three times for consistency.

3. Let us help: choose "Select Later"

Not sure, or planning a surprise? Choose "Select Later / Help Me Choose" when ordering any ring. We'll personally confirm the size with you before your piece is crafted. No guesswork, no risk. Planning a proposal? Message us and we'll share our favourite tricks for finding her size discreetly.

Tips for an Accurate Fit

  • Measure at the end of the day: fingers are smallest in the morning and in the cold. Aim for a normal body temperature.
  • Measure the correct hand: your dominant hand usually runs slightly larger.
  • Larger knuckles: measure both the base of your finger and your knuckle, and choose a size in between. The ring must pass over the knuckle but not spin freely.
  • Between two sizes? Choose the larger one.
  • Wide bands (4mm and up) fit more snugly, so consider going up a half size.
  • Sanity check: the most common women's sizes fall between K and P. If your measurement lands well outside that range, re-measure with a second method before ordering.

Australian Ring Size Chart

We craft in standard Australian/UK sizes. Find your measurement below, with US conversions included.

AU/UK Size Inside Diameter (mm) Inside Circumference (mm) US Size
F½ 14.1 44.2 3
G 14.3 44.8 3¼
G½ 14.5 45.5 3½
H 14.7 46.1 3¾
H½ 14.9 46.8 4
I 15.1 47.4 4¼
I½ 15.3 48.0 4½
J 15.5 48.7 4¾
J½ 15.7 49.3 5
K 15.9 50.0 5¼
K½ 16.1 50.6 5½
L 16.3 51.2 5¾
L½ 16.5 51.9 6
M 16.7 52.5 6¼
M½ 16.9 53.1 6½
N 17.1 53.8 6¾
N½ 17.3 54.4 7
O 17.5 55.1 7¼
O½ 17.7 55.7 7½
P 17.9 56.3 7¾
P½ 18.1 57.0 8
Q 18.3 57.6 8¼
Q½ 18.5 58.3 8½
R 18.8 58.9 8¾
R½ 19.0 59.5 9
S 19.2 60.2 9¼
S½ 19.4 60.8 9½
T 19.6 61.4 9¾
T½ 19.8 62.1 10

International Size Converter

Know your size in another standard? Convert it to your Australian size instantly.

Choose your standard and size above.

Working from a standard not listed here? Message our team with your measurement and we'll convert it precisely before you order.

Resizing Down the Track

Most solitaire and plain-band styles can be resized by a jeweller later. Eternity and pavé designs with stones all the way around have limited resizing options. That's one more reason to get the size right the first time, and why our "Select Later" option exists. For resizing details, see our Returns & Exchanges page or contact us before ordering.

Still unsure? Get in touch. We're available 11am–7pm Melbourne time, Monday to Saturday, and helping you find the perfect fit is genuinely our favourite part of the job.

Customer Reviews

Overall rating: 5 / 5 from 347 reviews.

Customer photo review of 4.2 Carat Weight Vera Moissanite Ring

I am so obsessed with my new ring. It looks and feels so luxe and everyone comments on it. I am so glad I decided that I was worth it and I would highly recommend Aura Diamonds to everyone.

Kathy K. 5/5 Verified

4.2 Carat Weight Vera Moissanite Ring

Customer photo review of Oval Cut 3 Carat Moissanite Bezel Solitaire Ring

Totally love the pieces I have purchased. This ring is beautiful and the customer service is so good! I thoroughly recommend this Australian company you won’t be disappointed!

Karin J. 5/5

Oval Cut 3 Carat Moissanite Bezel Solitaire Ring

Customer video review of Elegant Clover Leaf Cocktail Ring with Pave Band

So lovely ring, indeed made to perfection, well worth the wait as per in high demand, very much appreciated for the surprise gift Thank you so much. Cheers!

Catherine M. 5/5 Verified

Elegant Clover Leaf Cocktail Ring with Pave Band

Customer photo review of Luxury 2 Carat Pear Halo Ring with Pavé Band

The ring is exquisite! It arrived just in time before I went overseas and proposed to my fiancee. She was absolutely wrapped, she loved it! Thank you Aura Diamonds, you definately did not disappoint.

Matthew W. 5/5 Verified

Luxury 2 Carat Pear Halo Ring with Pavé Band

Customer photo review of Aura 4MM Eternity Band - Sterling Silver - Moissanite

Really like how smooth the experience was from ordering online to delivery in FNQ and the diamond certification included. My new favourite jeweller for buying my wife gifts.

Retief S. 5/5 Verified

Aura 4MM Eternity Band - Sterling Silver - Moissanite

Store owner replied: Thank you so much for your kind words! It truly makes our day to read such lovely feedback. Really appreciate it

Customer photo review of Elegant 2 Carat/3 Carat Oval Pavé Ring

Such beautiful jewellery! The fit is perfect and the quality is amazing. Aura Diamonds even gave me a beautiful gift and a lovely personal note. I love wearing this and the personal touch is just wonderful. Will definitely be coming back for more

Angela F. 5/5 Verified

Elegant 2 Carat/3 Carat Oval Pavé Ring

Customer photo review of Aura 4MM Eternity Band - Sterling Silver - Moissanite

I’m so excited, I seriously love these rings! They look so stunning, I can’t stop staring at them. The design is so beautiful and classy, exactly my style. I’m honestly obsessed, I’m so happy with them.

Shyla S. 5/5 Verified

Aura 4MM Eternity Band - Sterling Silver - Moissanite

Customer video review of Aura Love Eternity Band with 7 Sparkling Moissanite Gems - Platinum Plated

This was my first time buying from them. I’d seen their ads on one of Google apps a few times and finally decided to check them out. Loved that they’re based in Melbourne! The purchase was super easy, communication was great, and shipping was really fast. The rings look stunning, and the moissanite sparkles beautifully. Thank you for the free earrings love it. Once again thanks heaps.

Catherine 5/5

Aura Love Eternity Band with 7 Sparkling Moissanite Gems - Platinum Plated

Customer photo review of Tennis Bracelet 4MM / 5MM - Bespoke Handcrafted - Moissanite

I had the most incredible shopping experience with Aura Diamonds. Not only is my new tennis bracelet spectacular, Sean guaranteed I would receive it on time to wear at my son’s wedding last weekend. Communicating with him was effortless, the customer service afforded me was exemplary and the courtesy and kindness shown to me was second to none. It was reassuring dealing with an Australian owned family business and I very much look forward to shopping with them in the future.

Susan B. 5/5 Verified

Tennis Bracelet 4MM / 5MM - Bespoke Handcrafted - Moissanite

Customer photo review of Timeless 4 Carat Emerald Cut Solitaire Ring | Moissanite | 18K Gold Plated

Vanessa in customer service was so amazing helping me over the two weeks before ordering. She answered ever question and gave me such a bespoke experience and service. I couldn't have asked for better. I got the 4ct Emerald cut with the gold plated band, and my partner and I couldn't be happier. The moissanite is so shiny and durable. Will definitely be coming back here if I ever want a new ring in the future!

Cleo A. 5/5

Timeless 4 Carat Emerald Cut Solitaire Ring | Moissanite | 18K Gold Plated

Handmade with Love

Every piece is crafted with care in your chosen size, metal and stone.

IGI-Certified Lab Diamonds

Our lab-grown diamonds are independently graded and certified by IGI.

Manufacturing Warranty

Every piece is backed by our manufacturing warranty for lasting peace of mind.

Australian Family Business

Australian-owned and family-run in Melbourne. From our family to yours.