Size Guide
Choosing the perfect ring size is an essential part of the Hardy Brothers experience.
Our guide below will help you find the most accurate fit, ensuring comfort, elegance, and a seamless expression of luxury.
| Australian Size | Inside Circumference (mm) |
|---|---|
| H | 46.0 |
| H ½ | 46.6 |
| I | 47.2 |
| I ½ | 47.9 |
| J | 48.3 |
| J ½ | 49.3 |
| K | 49.6 |
| K ½ | 50.3 |
| L | 50.5 |
| L ½ | 51.5 |
| M | 51.8 |
| M ½ | 52.5 |
| N | 53.1 |
| N ½ | 53.8 |
| O | 54.5 |
| O ½ | 54.8 |
| P | 55.7 |
| P ½ | 56.4 |
| Q | 57.1 |
| Q ½ | 57.6 |
| R | 58.4 |
| R ½ | 59.1 |
For the most precise fit, we invite you to visit a Hardy Brothers boutique where our specialists will personally measure your finger and ensure your chosen piece is crafted to perfection.

Hardy Brothers uses standard Australian ring sizes.
| Australian Size | Inside Circumference(mm) |
| M 1/2 | 55.7 |
| N | 57.0 |
| N 1/2 | 58.3 |
| O | 59.6 |
| O 1/2 | 60.9 |
| P | 62.2 |
| P 1/2 | 63.5 |

Cut out the length chart
Measure your wrist
Subtract the case size of the timepiece from your wrist measurement
-
Be sure to print this guide at 100%
Measure this box to check accuracy


Enquire about 2.18 Carat TDW Round Brilliant Cut Trilogy Engagement Ring in 18ct White Gold
Details
| Vendor | Hardy Brothers Jewellers |
| Metal | 18ct White Gold |
| Main Gemstone | Diamond |
Product Details
Exude timeless elegance with this stunning 2.18 Carat TDW Round Brilliant Cut Trilogy Engagement Ring, meticulously crafted in polished 18ct White Gold. Designed to celebrate love in its most radiant form, this piece combines classic sophistication with exceptional sparkle.
At its centre shines a GIA-certified Round Brilliant Cut diamond. The centre stone boasts a D colour and VS2 clarity, radiating brilliance and a pure, near-colourless sparkle. Complementing it perfectly are two F colour, VS2 clarity round brilliant side stones, enhancing the ring’s luminosity and creating a harmonious, balanced design.





























