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® 21.91 Carat Cushion Cut Blue Cambodian Zircon and 2.16 Carat Round Brilliant Cut Diamond Halo Ring in 18ct White Gold
Product Description
Brilliant and intensely luminous, this Vault® halo ring centres a remarkable 21.91 ct cushion-cut blue zircon, its vivid azure hue enhanced by the polished 18ct white gold setting. Surrounding the centre stone, eighteen round brilliant-cut diamonds introduce a refined sparkle that accentuates the zircon’s natural fire and clarity, creating a harmonious balance of colour and brilliance.
Zircon is celebrated not only for its beauty but also for its extraordinary scientific significance. Thanks to its unique ability to trap radioactive elements, zircon can track the passage of geological time—an attribute that allowed scientists to date the Earth itself to approximately 4.5 billion years, based on a specimen from the Jack Hills in Western Australia.
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