# Black Diamond Gravel | 20mm Black Basalt Chippings

Black Diamond Gravel is a 20mm basalt chip with a sleek, contemporary feel — deep black when wet and a smoky grey when dry. Naturally angular and beautifully uniform, it's comfortable to walk and drive on and ideal for modern schemes, water features and setting off planters and borders.

## Product Details

-   **Stone:** Basalt
-   **Colour:** Black
-   **Grade:** 20mm, angular and uniform
-   **Best for:** Paths, driveways, borders, planters and water features
-   **Pack sizes:** Jumbo bag (approx 1,000kg), standard bulk bag (approx 750kg), midi bag (approx 500kg), or 25kg handy bags in packs of 10, 20 or 40
-   **Coverage:** Approx 10–12m² per tonne at 50mm (2in) depth
-   **Natural stone:** Shades vary between batches and deepen when wet
-   **Supplier:** Dandy's Topsoil & Landscape Supplies

## Also in the Landscaping Range

-   [Black Ice Gravel](/products/black-ice-gravel-chippings)
-   [Black & White Limestone Gravel](/products/black-and-white-limestone-gravel-chippings)
-   [Silver Grey Granite Gravel](/products/silver-grey-granite-gravel-chippings)

Browse more in our [Decorative Gravel](/collections/decorative-gravel) range, or explore the full [Landscaping](/collections/landscaping) collection at Oak & Outdoor.

## Details

- **Price:** 141.0 GBP - 344.17 GBP
- **Vendor:** Dandy's Topsoil & Landscape Supplies
- **Type:** Gravel, Slate & Aggregates
- **Tags:** Dandy's Topsoil & Landscape Supplies, Gravel, Landscaping, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Jumbo Bag approx. 1000kgs ⭐️ BEST BUY! | 201.00 GBP | In stock |
| Standard Bulk Bag approx. 750kgs | 170.00 GBP | In stock |
| Midi Bag approx. 500kgs | 141.00 GBP | In stock |
| 40 x 25kg Handy Bags | 344.17 GBP | In stock |
| 20 x 25kg Handy Bags | 214.27 GBP | In stock |
| 10 x 25kg Handy Bags | 149.31 GBP | In stock |

## Images

- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings
- Black Diamond Gravel | 20mm Black Basalt Chippings

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> Source: [Oak & Outdoor](https://oakandoutdoor.co.uk/products/black-diamond-gravel-chippings)
> Updated: 2026-10-27