# Diamond Edge No.1 Knife Sharpener, Ruby Red, 2-Stage

Source: https://www.ranked10.co.uk/kitchen/best-knife-sharpener/diamond-edge-ruby
Ranked #5 in "Best Knife Sharpener 2026: The Grit Field Holds a Word": https://www.ranked10.co.uk/kitchen/best-knife-sharpener

- Price: £12.99 (checked on Amazon UK on 2026-09-12)
- Amazon rating: 4.4 from 10,515 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B09LZ3DKNH?tag=ranked10-21

This is the Diamond Edge No.1 in ruby red, at the same £12.99 with the same 10,515 ratings as the black version at number four.

It takes fifth because the tool and price are identical, while the two listings disagree about its weight by ten grams and describe the same cube in two different dimension orders.

## Specification

| Field | Value |
|---|---|
| Item weight | 60 g |
| Dimensions as listed | 6.2 x 6.2 x 6.7 cm |
| Colour | Ruby Red |
| Material | Tungsten carbide |
| Price | £12.99 |
| Ratings | 4.4 from 10,515 |

## Questions people ask

**Is this different from number four?**

Only in colour, and the weight field disagrees between them.

**Which weighs more?**

One page says 60g and the other 70g; the tool is the same.

**Does it sharpen well?**

Buyers report it better than more expensive sharpeners.

**Does it take metal off the blade?**

Yes, and one review advises going gently.

**Why is it fifth?**

Because it is a colour variant of the tool at number four, and the two pages contradict each other.

**How many ratings does it have?**

10515 at the time of collection, averaging 4.4 stars, with 66 per cent five-star and 4 per cent one-star.