Truly unique · Black zirconium
Heartbeat, relieved black
From £399
A heartbeat line milled around a relieved black zirconium band.
A flat relieved black zirconium band with a heartbeat line milled around it, as photographed.
Made to order · 2 to 3 weeks · posted insured
Before you order, in one place
- What you are buying
- Heartbeat, relieved black, black zirconium, made to order in your size. Widths 6 to 10mm.
- Price
- £399 total. UK delivery and engraving are included and nothing is added at checkout.
- When it arrives
- 2 to 3 weeks to make, then one working day insured and signed for. Delivery in full
- Changing your mind
- 30 days from delivery, return postage paid, unless you have it engraved. The cancellation right
- Who you are contracting with
- Trothe Ltd, registered in England and Wales, company number 17431230, Lytchett House, 13 Freeland Park, Wareham Road, Poole, Dorset, BH16 6FA. Questions and complaints to hello@trothe.co.uk.
- MaterialBlack zirconium
- Surface hardnessMohs 8
- Density6.5 g/cm³
- ResizableNot usually
- HallmarkedNot applicable, non precious
- MadeTo order, in your size
- Delivery2 to 3 weeks, insured
- Returns30 days, unengraved
- EngravingOptional, included, inside the band
Also in: Wedding rings, His and hers, Men's rings, Black rings
About this ring
Heartbeat, relieved black, in detail
A flat relieved black zirconium band with a heartbeat line milled around it, as photographed: the line rises and falls across the band like a pulse on a monitor.
How it wears
Black zirconium's surface is around Mohs 8 and the metal is hypoallergenic, at 6.5 grams per cubic centimetre.
Choosing yours
Nothing is written on the outside, so the line is the whole design, and the free engraving inside the band can carry any words you want with it.
Width by width
| Width | How it reads | Weight, est. | Price |
|---|---|---|---|
| 6mm | Classic, the usual starting point for a band | 3.2g | £399 |
| 7mm | Classic to broad, more of the pattern shows | 3.7g | £399 |
| 8mm | Broad, a ring that is clearly there | 4.2g | £424 |
| 9mm | Wide and bold, best on a larger hand | 4.7g | £424 |
| 10mm | Wide and bold, best on a larger hand | 5.3g | £424 |
Weights are estimates for a plain band of the same width in black zirconium at UK size N with a 1.6mm wall, from the model in our ring weight calculator. A pattern cut into the surface removes a little metal, so the finished ring is slightly lighter. The price steps up at the widths that take more metal to make.
How it compares with the rings nearest it
| Ring | What sets it apart | Metal | Widths | Surface hardness | From |
|---|---|---|---|---|---|
| Heartbeat, relieved black (this ring) | A heartbeat line milled around a relieved black zirconium band. | Black zirconium | 6 to 10mm | Mohs 8 | £399 |
| Waves, relieved black | Waves cut through black to bright metal. | Black zirconium | 4 to 10mm | Mohs 8 | £365 |
| Knurled, black | A knurled centre, like the grip of a tool, between bright edges. | Black zirconium | 4 to 10mm | Mohs 8 | £365 |
| Scattered set | Diamonds flush set at irregular intervals, not in a line. | Black zirconium | 4 to 10mm | Mohs 8 | £349 |
There are 25 black zirconium bands in the range, from £199 to £1,525. All about black zirconium.
The metal, in brief
Heating zirconium forms a black ceramic oxide at its surface. The colour comes from that oxide, rather than applied black plating. It is a hard surface over a softer metal core, so scratch resistance does not mean the whole ring is black or immune to damage.
Surface hardness Mohs 8, density 6.5 g/cm³, and hypoallergenic, so it is a sound choice for skin that reacts to nickel. It is not a precious metal, so it carries no hallmark.
Compared side by side: Anodised zirconium or black zirconium, Black zirconium or titanium, Black zirconium or sterling silver. Or read the full black zirconium guide.
Work it out before you order
About Heartbeat, relieved black
- Can this ring be resized?
- Not in the usual way. The black is grown into the surface of the metal, so cutting or machining the band would show bright metal underneath. That is why the size is settled before the ring is made, and every ring is made to that measurement.
- Is engraving included?
- Yes, and it is optional. Leave the box blank and the ring is made plain. If you do want one it is laser cut inside the band where the ring is made, rather than sent out to a third party, and there is no charge and no extra wait.
- How long will it take?
- 2 to 3 weeks. It is made in your size after you order, not picked off a shelf, and that is the reason the widths and finishes are open choices.
- Can I return it if I have it engraved?
- Not for a change of mind. An engraving makes the ring clearly personalised, which puts it outside the statutory right to cancel, and it cannot be resold. Every ring shop draws the line here. Order it plain and you keep the full 30 days. Either way, a ring that arrives faulty or is not what you ordered is covered by the Consumer Rights Act, which nothing waives.
- How much does the Heartbeat, relieved black ring weigh?
- About 3.2g at 6mm, 5.3g at 10mm, estimated for a plain band in black zirconium at UK size N. Larger sizes and wider bands weigh more. It is a light ring by any standard: 18ct gold of the same size is more than twice the weight.
- What widths does it come in, and do they cost the same?
- 6 to 10mm. 6mm, 7mm are £399, and 8mm, 9mm, 10mm £424, because the wider bands take more metal to make.
- What is closest to the Heartbeat, relieved black in the range?
- Waves, relieved black (black zirconium) and Knurled, black (black zirconium). The comparison table on this page sets them side by side on metal, width, hardness and price.
- What if I get the size wrong?
- If it is unengraved, return it inside 30 days and we refund it, and we pay the postage. Use the free ring size finder first if you are unsure, and if the ring is a surprise, ask us and we will talk you through the ways to find out without asking them.