
In stock — ready to ship
At a glance
Strong, distinctive and as black as a magpie in a mineshaft, ZiRO reinvents the dress ring for modern-day sensibilities. Crafted in basic black or black with brilliant detail, ZiRO delivers good looks that go the distance. The band is 6mm wide with polished gold edges and Black Zirconium centre with sanded finish.
ZiRO Black Zirconium rings are made in New Zealand from the mineral Zircon (ZrSiO4), which is found in S-type giant stars and the sun. When exposed to extreme heat, Zirconium forms a distinctive black coating which has a texture similar to ceramic.
ZiRO rings are supremely comfortable, hypoallergenic and available in a range of unique, modern and classic styles.
Product Details:
Free express shipping on New Zealand orders over $100, dispatched within 1–2 business days. Same-day Click & Collect is available from our Ōtāhuhu, Auckland showroom — choose Click & Collect at checkout.
This piece is covered by the Stonex Jewellers warranty. If anything is faulty, contact us and we will put it right. Where this description states a ZiRO warranty, that warranty is provided by ZiRO on its own terms.
Use a ring that already fits or measure your finger to find the closest Stonex ring size.
| NZ / AU | US | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| F | 3 | 14.1 | 44.2 |
| G | 3½ | 14.5 | 45.5 |
| H | 4 | 14.9 | 46.8 |
| I | 4½ | 15.3 | 48.0 |
| J | 5 | 15.5 | 48.7 |
| K | 5½ | 15.9 | 50.0 |
| L | 6 | 16.3 | 51.2 |
| M | 6½ | 16.7 | 52.5 |
| N | 7 | 17.1 | 53.8 |
| O | 7½ | 17.5 | 55.1 |
| P | 8 | 17.9 | 56.3 |
| Q | 8½ | 18.3 | 57.6 |
| R | 9 | 18.8 | 58.9 |
| S | 9½ | 19.2 | 60.2 |
| T | 10 | 19.6 | 61.4 |
| U | 10½ | 20.0 | 62.7 |
| V | 11 | 20.4 | 64.0 |
| W | 11½ | 20.8 | 65.3 |
| X | 12 | 21.2 | 66.6 |
| Y | 12½ | 21.6 | 67.8 |
| Z | 13 | 22.0 | 69.1 |
| Z+1 | 13½ | 22.4 | 70.4 |
| Z+2 | 14 | 22.8 | 71.7 |
| Z+3 | 14½ | 23.2 | 72.9 |
| Z+4 | 15 | 23.6 | 74.2 |
| Z+5 | 15½ | 24.0 | 75.5 |
| Z+6 | 16 | 24.4 | 76.8 |
| Z+7 | 16½ | 24.8 | 78.0 |
This chart helps estimate fit. US sizes are the closest equivalent, and sizing can vary slightly with a ring’s width and design.
Band width: Wider bands can feel tighter than fine bands. If you are between sizes, you may need the next available size.
Need help choosing a size?
Contact the Stonex team or visit our Auckland showroom and we’ll help you find the right fit.
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