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® 7.80 Carat Oval Cut Tanzanite and 4.91 Carat Diamond Halo Ring in 18ct White Gold
Product Description
Radiating deep, mystical colour, this Vault® halo ring centres a striking 7.80ct oval tanzanite, its rich blue-violet hue illuminated by the cool lustre of polished 18ct white gold. Encircling the centre stone, a halo of round brilliant-cut and marquise diamonds enhances the tanzanite’s natural brilliance, introducing a refined sparkle that draws the eye without overshadowing the gemstone’s captivating depth.
All genuine tanzanite is sourced from a single, extraordinarily small location on earth—a 7 km by 2 km strip of land near the Mererani Hills of northern Tanzania, close to Mount Kilimanjaro. Found nowhere else in the world, this unique geological origin makes tanzanite one of the rarest gemstones in existence.
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