Ring width
3mm wedding rings
A 3mm wedding ring is slim and delicate: 3 millimetres along the finger, about 0.12 of an inch. It is often worn beside an engagement ring, with a little more metal on show than 2mm. We make 6 rings at 3mm, from £525, most of them in 9ct gold and 18ct gold.
Every width in millimetres, drawn to the same scale. Tap one to see it.
Made at 3mm
3mm rings to look at
Each one opens at 3mm, with its price, finishes and weight on its own page.
Soft ridge
The face rises to a gentle ridge, so the light runs along the finger.
Greek key, gold
A Greek key border cut in a continuous line around the band.
Rose satin sparkle, hers
Rose gold, satin on his and a frosted sparkle on hers. 3mm, sold alone or as a set.
Rose satin sparkle, his
Rose gold, satin on his and a frosted sparkle on hers. 3mm, sold alone or as a set.
Faceted vega, hers
Broad flat facets that turn a round band into a soft polygon. 3mm, sold alone or as a set.
Faceted vega, his
Broad flat facets that turn a round band into a soft polygon. 3mm, sold alone or as a set.
What a 3mm wedding ring weighs
Find your size across the top. Every figure is a plain court band with a 1.6mm wall.
| Metal | J | L | N | P | T |
|---|---|---|---|---|---|
| Titanium | 1.0 | 1.1 | 1.1 | 1.1 | 1.2 |
| Black zirconium | 1.5 | 1.5 | 1.6 | 1.7 | 1.8 |
| 9ct gold | 2.6 | 2.7 | 2.8 | 2.9 | 3.1 |
| 18ct gold | 3.5 | 3.7 | 3.8 | 4.0 | 4.3 |
| Platinum 950 | 4.5 | 4.7 | 4.9 | 5.1 | 5.5 |
Worked out the same way as our ring weight calculator. A patterned, stone set or inlaid ring will differ from a plain band.
How a 3mm ring fits
Your usual size is the place to start at 3mm. The free ring size finder takes about two minutes at home. Find your size.
Other widths
2mm wedding rings4mm wedding rings5mm wedding rings6mm wedding rings7mm wedding rings8mm wedding rings9mm wedding rings10mm wedding ringsCompare every width
3mm ring questions
- How wide is a 3mm ring?
- 3 millimetres along the finger, about 0.12 of an inch. It reads as slim and delicate. It is often worn beside an engagement ring, with a little more metal on show than 2mm.
- How much does a 3mm wedding ring weigh?
- At UK size N with a 1.6mm wall, about 1.1g in titanium, 1.6g in black zirconium, 2.8g in 9ct gold, 3.8g in 18ct gold and 4.9g in platinum 950.
- How much is a 3mm wedding ring?
- Our 3mm rings start at £525, with UK delivery included. 6 rings are made at this width.
- How different is 3mm from 4mm?
- One millimetre of width. In 9ct gold at UK size N, 3mm weighs about 2.8g and 4mm about 3.7g. In titanium the same two widths weigh 1.1g and 1.5g, so the difference is in how the ring looks far more than how it feels.
- Is a 3mm ring the same as ring size 3?
- No. 3mm describes the width of the band along the finger. Ring size describes the opening that fits around the finger. UK sizes use letters.
- Will a 3mm ring feel tight?
- Your usual size is the place to start at 3mm. The free ring size finder takes about two minutes at home.