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Onyx Rectangle Stone Signet Ring (Silver)
£50
Fair Pricing
Premium quality, without the premium markup.
The same materials used by luxury houses — direct to you.
£15–30
Fast Fashion
£59–69
CRAFTD
£500+
Fine Jewellery
Loved by 1,000,000+ others
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Lifetime Guarantee
Every piece covered, for life.
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20,000+ 5-Star Reviews
From verified buyers.
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18k Gold & Rhodium
Water, heat and sweat-proof.
Lifetime Warranty
Your jewellery is CRAFTD to Last.
But sometimes, accidents happen. That’s why every piece comes complete with a Full Lifetime Warranty.
Snapped a chain? Damaged a pendant? We got you.
Please note: our Lifetime Warranty only covers accidental damage. If your piece is lost, stolen or damaged via a third party, we can’t cover this.
Onyx is known to enhance self-confidence and discipline.
A silver signet is an essential in every man’s collection. This classic piece features a sleek onyx gemstone, hand-set within a premium Cabochon inlay—an expert technique that brings out the stone's richest, deepest colour. Its superior, scratch-resistant coating protects its natural shine, while the brushed inner shank ensures all-day comfort. Wear yours solo or stack it with other styles—either way, it’s a timeless ring that will stay with you for a lifetime.
Your jewellery is CRAFTD to Last.
But sometimes, accidents happen. That's why every piece comes complete with a Full Lifetime Warranty.
Snapped a chain? Damaged a pendant? We got you.
Please note: Our Lifetime Warranty only covers accidental damage. So heads up – If your piece is lost, stolen or damaged via a third-party, we can’t cover this.
- Standard £4.99 or FREE over £75 (2-3 Working Days)
- Next-Day from £5.99 (1-2 Working Days)
Rings Size Guide
How To Find Your Size
For Rings with Sizes 7 - 13
| Size | Inner Circumference (mm) | Inner DIM (mm) |
| 7 (O) | 54.4 | 22.32 |
| 7.5 (P) | 55.7 | 22.73 |
| 8 (Q) | 57 | 23.14 |
| 8.5 (R) | 58.3 | 23.56 |
| 9 (S) | 59.5 | 23.94 |
| 9.5 (T) | 60.8 | 24.35 |
| 10 (U) | 62.1 | 24.77 |
| 10.5 (V) | 63.4 | 25.18 |
| 11 (W) | 64.6 | 25.56 |
| 11.5 (X) | 65.9 | 25.98 |
| 12 (Y) | 67.2 | 26.39 |
| 12.5 (Z) | 68.5 | 26.80 |
| 13 (Z1) | 69.7 | 27.19 |
Circumference: The full outside measurement around your chosen finger.
For Rings with Sizes XS - L
| Size | Circumference (mm) | UK & Aus | US & Canada |
| XS | 52mm | L | 6 |
| S | 57mm | P | 8 |
| M | 62mm | T | 10 |
| L | 67mm | X | 12 |
Circumference: The full outside measurement around your chosen finger.
Find your size in 3 easy steps:
1. Wrap a strip of paper around your finger, allowing for the size of your knuckle.
2. With a pen, mark the point on the paper where the two ends meet.
3. Measure the paper against the ruler in mm and compare it to the circumference in the above chart.
In between sizes? Always opt for the larger size.
Onyx Rectangle Stone Signet Ring (Silver)
£50
Onyx Rectangle Stone Signet Ring (Silver)