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 |

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Subtract the case size of the timepiece from your wrist measurement
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Enquire about VAULT® Argyle Pink Diamond Ring in 18ct White and Rose Gold
Details
| Vendor | Hardy Brothers Jewellers |
| Metal | 18ct White and Rose Gold |
| Main Gemstone | Argyle Pink Diamond |
| Main Gemstone Cut | Princess Cut |
| Main Gemstone Carat Weight | 0.33 Carat |
Product Description
Rare and radiant, this Vault® Argyle Pink Diamond ring celebrates one of nature’s most coveted treasures. At its centre sits a 0.33 carat Argyle pink diamond, it is surrounded by ten pink diamonds totalling 0.20 carats and further accented by round brilliant cut white diamonds, bringing the total diamond weight to 0.989 carats.
Expertly crafted in 18ct rose and white gold, the dual-tone setting enhances the warmth of the pink diamonds while the white gold introduces a crisp, luminous contrast. Both refined and collectible, this piece embodies the Vault® collection’s dedication to rare gemstones, exceptional provenance and timeless design.




























