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- 18mm Cuban Bracelets
- Revolutionary Clasp
Revolutionary Clasp
- Sterling Silver
- Blue Sapphire Pavé
- Length: 45mm, Width: 18mm, Thickness: 5mm, Total Weight 17.44gms
Luxurious, technically brilliant and full of workmanship, our 'England Made Me' collection pays homage to the skills of master craftspeople who have helped to make English jewellery so highly-prized.
Our Revolutionary Clasp is crafted from gunmetal grey Sterling Silver, set with Black Onyx Inlay and Black Sapphire pavé around the centre finished with an engraved motif modelled on a cigar cutter.
This clasp is to be worn with 18mm Cuban Bracelets, which are sold separately.
Style Code: SB0495
All orders dispatched to the US and EU are sent DDP (delivery duty paid) with ROW orders sent DAP (delivered at place).
UK | Free shipping on all orders. Please allow 2-3 days for delivery. Free returns & exchanges.
US | $25 – Free shipping over $1,000. Please allow 3-5 days for delivery.
EU | €25 - Free shipping over €1,000. Please allow 3-5 days for delivery.
ROW | £35 – Free shipping over £1,000. Please allow 5-7 days for delivery.
Christmas Holidays Extended Returns
Our 30 day return policy for purchases made between November 20th and December 23rd, 2025 is extended to January 16th, 2026.
Stephen Webster is committed to sustainable practices and ethical sourcing, with the belief that fine jewellery should not only be impeccably crafted but also stand for something.
Our collections are crafted with recycled gold and silver, offering Fairtrade Gold and Single Mined Gold by request for bespoke commissions, with diamonds certified by the Kimberley Process Certificate Scheme.
Ring Size Guide
| Stephen Webster Sizing | Int. Diameter Circumference | |
|---|---|---|
| 3 | 14.1 / 44.2 | F 1/2 |
| - | 14.3 / 44.8 | G |
| 3.5 | 14.5 / 45.5 | G 1/2 |
| - | 14.7 / 46.1 | H |
| 4 | 14.9 / 46.8 | H 1/2 |
| - | 15.1 / 47.4 | I |
| 4.5 | 15.3 / 48 | I 1/2 |
| - | 15.5 / 48.7 | J |
| 5 | 15.7 / 49.3 | J 1/2 |
| - | 15.9 / 50 | K |
| 5.5 | 16.1 / 50.6 | K 1/2 |
| - | 16.3 / 51.2 | L |
| 6 | 16.5 / 51.9 | L 1/2 |
| - | 16.7 / 52.5 | M |
| 6.5 | 16.9 / 53.1 | M 1/2 |
| - | 17.1 / 53.8 | N |
| 7 | 17.3 / 54.4 | N 1/2 |
| - | 17.5 / 55.1 | O |
| 7.5 | 17.7 / 55.7 | O 1/2 |
| - | 17.9 / 56.3 | P |
| 8 | 18.1 / 57 | P 1/2 |
| - | 18.3 / 57.6 | Q |
| 8.5 | 18.5 / 58.2 | Q 1/2 |
| - | 18.8 / 58.9 | R |
| 9 | 19 / 59.5 | R 1/2 |
| - | 19.2 / 60.2 | S |
| 9.5 | 19.4 / 60.8 | S 1/2 |
| - | 19.6 / 61.4 | T |
| 10 | 19.8 / 62.1 | T 1/2 |
| - | 20 / 62.7 | U |
| 10.5 | 20.2 / 63.4 | U 1/2 |
| - | 20.4 / 64 | V |
| 11 | 20.6 / 64.6 | V 1/2 |
| - | 20.8 / 65.3 | W |
| 11.5 | 21 / 65.9 | W 1/2 |
| - | 21.2 / 66.6 | X |
| 12 | 21.4 / 67.2 | X 1/2 |
| - | 21.6 / 67.8 | Y |
| 12.5 | 21.8 / 68.5 | Z |
| - | 22 / 69.1 | Z 1/2 |
| 13 | 22.2 / 69.7 | - |
How To Measure
To measure your finger, you can use a tape measure. Measure the circumference of your finger in mm and find your corresponding size from the conversion chart above.
Choose a ring that already fits your finger well and measure the interior diameter of the ring in mm with a tape measure. Find your corresponding size from the conversion chart above.
If you order a ring and it's not quite the right size, let us know within 30 days of receiving your order and our in-house workshop can provide complimentary ring resizing.
*Excluding some collections* Top Tips
To get the most accurate measurement of your finger, measure at room temperature, when your hands are not unusually hot or cold.
Remember that your two hands differ slightly in size; a ring worn on a finger of the left hand may not be perfect for the finger on the right hand.
If you are hesitating between two sizes, choose the larger size.
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