Multi toned · Black zirconium
Twin lines, black
From £269
Two bright lines through matte black.
Two fine channels cut through the black oxide to the bright metal beneath, running parallel around a satin black band. The quietest two tone ring we make and the least expensive.
Made to order · 2 to 3 weeks · posted insured
Before you order, in one place
- What you are buying
- Twin lines, black, black zirconium, made to order in your size. Widths 4 to 10mm.
- Price
- £269 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
- ResizableSpecialist assessment
- 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, Promise rings, His and hers, Men's rings
About this ring
Twin lines, black, in detail
A satin black band with two fine channels cut around it, parallel and close together, down through the oxide to the bright metal underneath. Nothing has been inlaid or painted. The lines are the zirconium itself, showing where the black has been taken away. Against the matte surface they read as two thin threads of light, brightening and fading as the hand moves. Of all the two tone rings this is the most restrained, with nothing to interrupt the black except those two lines, and the restraint is the design: it looks considered rather than decorated.
How it wears
That black surface is a hard oxide, close to 8 on the Mohs scale, and it resists the small scratches a working week brings. The two bright lines sit down in their channels, a fraction below the face, so the band takes contact before they do. A heavy knock against something harder can still mark the black and show pale metal. A pale smudge after brushing against metal can also be transferred material sitting on top rather than damage. The ring is hypoallergenic and comfortable for constant wear.
Choosing yours
On a 4 or 5mm band the two lines sit close and the ring reads as nearly plain black, which suits someone who wants a ring that stays out of the conversation. Across 8 to 10mm the black field widens around them and the lines become a deliberate detail, more graphic, like a stripe on a dark cuff. Every width comes in the same satin black. As a pair it works with itself: two widths of the same ring carry the lines across both hands while each wearer decides how much black to wear.
Width by width
| Width | How it reads | Weight, est. | Price |
|---|---|---|---|
| 4mm | Slim, the quietest everyday width | 2.1g | £269 |
| 5mm | Between slim and classic | 2.6g | £269 |
| 6mm | Classic, the usual starting point for a band | 3.2g | £269 |
| 7mm | Classic to broad, more of the pattern shows | 3.7g | £269 |
| 8mm | Broad, a ring that is clearly there | 4.2g | £295 |
| 9mm | Wide and bold, best on a larger hand | 4.7g | £295 |
| 10mm | Wide and bold, best on a larger hand | 5.3g | £295 |
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. 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 |
|---|---|---|---|---|---|
| Twin lines, black (this ring) | Two bright lines through matte black. | Black zirconium | 4 to 10mm | Mohs 8 | £269 |
| Relieved black | Black cut back to bright metal along both edges. | Black zirconium | 4 to 10mm | Mohs 8 | £255 |
| Twin groove | Two tones divided by a V cut around the centre. | Black zirconium | 4 to 10mm | Mohs 8 | £255 |
| Brushed centre, polished bevels | Matte through the middle, bright along both edges. | Black zirconium | 4 to 10mm | Mohs 8 | £255 |
There are 17 black zirconium bands in the range, from £199 to £625. 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 Twin lines, black
- Can this ring be resized?
- Black zirconium needs specialist assessment. GETi describes resizing as difficult and time consuming, rather than completely impossible. The oxide surface, construction and requested size change need consideration. Do not assume a local jeweller can alter it or that a replacement is automatic. Ask whether the proposed solution alters the original band or supplies a remake, and confirm the finish, engraving, cost and timing.
- 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 Twin lines, black ring weigh?
- About 2.1g at 4mm, 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?
- 4 to 10mm. 4mm, 5mm, 6mm, 7mm are £269, and 8mm, 9mm, 10mm £295, because the wider bands take more metal to make.
- What is closest to the Twin lines, black in the range?
- Relieved black (black zirconium) and Twin groove (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.