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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Enquire about VAULT 15.69 CARAT ASSCHER CUT TOURMALINE AND 4.26 CARAT DIAMOND HALO RING IN 18CT WHITE GOLD
Details
| Vendor | Hardy Brothers Jewellers |
| Metal | 18ct White Gold |
| Main Gemstone | Tourmaline |
Read more information regarding our Product Disclaimers.
Product Details
A breathtaking celebration of grandeur and precision, this Vault Ring showcases a spectacular 15.69 carat Asscher cut peach tourmaline, its mesmerising depth and geometric symmetry radiating sophistication. The vivid tones of the tourmaline command attention, beautifully enhanced by an opulent halo of diamonds totalling 4.26 carats, each one meticulously set to capture and reflect light from every angle.
Designed for the true connoisseur, this extraordinary ring is more than a statement — it is an heirloom masterpiece, representing the pinnacle of craftsmanship and elegance.





















