Import/export HS code 710421: Diamonds (synthetic or lab-made)
Man-made diamonds, not set or mounted, used in jewelry or industry
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| Thailand | 6,959,909 |
| United States | 804,273 |
| India | 418,508 |
| Germany | 216,633 |
| Ireland | 121,697 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Thailand | 163,052 | 6,796,857 | +6,633,805 |
| United States | 675,990 | 128,283 | -547,707 |
| India | 179,078 | 239,430 | +60,352 |
| Germany | 71,068 | 145,565 | +74,497 |
| Ireland | 66,556 | 55,141 | -11,415 |
| Netherlands | 51,540 | 1,566 | -49,974 |
| Belgium | 24,218 | 16,323 | -7,895 |
| China | 10,136 | 4,614 | -5,522 |
| China, Hong Kong Special Administrative Region | 0 | 10,319 | +10,319 |
| Switzerland | 5,657 | 0 | -5,657 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| United States | 5,790,778 |
| Thailand | 1,824,273 |
| India | 563,935 |
| Germany | 181,235 |
| United Kingdom | 106,946 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 636,316 | 5,154,462 | +4,518,146 |
| Thailand | 104,131 | 1,720,142 | +1,616,011 |
| India | 259,664 | 304,271 | +44,607 |
| Germany | 35,670 | 145,565 | +109,895 |
| United Kingdom | 98,377 | 8,569 | -89,808 |
| Ireland | 27,070 | 46,572 | +19,502 |
| Netherlands | 51,540 | 1,566 | -49,974 |
| Belgium | 23,213 | 2,018 | -21,195 |
| China | 11,314 | 11,821 | +507 |
| China, Hong Kong Special Administrative Region | 0 | 3,112 | +3,112 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 3 |
| Bedfordshire and Hertfordshire | 1 |
| Inner London - West | 1 |
| North Wales | 1 |
| Outer London - South | 1 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 2 | 3 | +1 |
| Bedfordshire and Hertfordshire | 0 | 1 | +1 |
| Inner London - West | 1 | 0 | -1 |
| North Wales | 1 | 1 | +0 |
| Outer London - South | 1 | 0 | -1 |
| Outer London - West and North West | 1 | 1 | +0 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 8,605,284 |
| Sea transport (not vehicle on ferry) | 42,340 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 1,212,158 | 7,393,126 | +6,180,968 |
| Sea transport (not vehicle on ferry) | 35,137 | 7,203 | -27,934 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Heathrow Airport | 7,422,135 |
| East Midlands Airport | 842,772 |
| London Stansted Airport | 293,693 |
| Birmingham Airport | 41,464 |
| Thamesport | 33,386 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| London Heathrow Airport | 339,940 | 7,082,195 | +6,742,255 |
| East Midlands Airport | 639,976 | 202,796 | -437,180 |
| London Stansted Airport | 190,778 | 102,915 | -87,863 |
| Birmingham Airport | 41,464 | 0 | -41,464 |
| Thamesport | 30,071 | 3,315 | -26,756 |
| London Gateway Port | 5,066 | 3,888 | -1,178 |
| Manchester Airport | 0 | 5,220 | +5,220 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Other manufacturing | 2 |
| Scientific research and development | 2 |
| Wholesale trade, except of motor vehicles and motorcycles | 2 |
| Architectural and engineering activities; technical testing and analysis | 1 |
| Financial service activities, except insurance and pension funding | 1 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-01 | 1 |
| 2025-11 | 1 |
| 2025-10 | 2 |
| 2025-08 | 2 |
| 2025-07 | 1 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 1m-15m | 3 |
| 54m+ | 3 |
| 15m-54m | 2 |
| Other | 1 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Thailand | 2,885,533 |
| United States | 235,605 |
| India | 183,083 |
| Canada | 125,500 |
| Germany | 116,395 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Thailand | 877,075 | 2,008,458 | +1,131,383 |
| United States | 218,495 | 17,110 | -201,385 |
| India | 65,587 | 117,496 | +51,909 |
| Canada | 91,143 | 34,357 | -56,786 |
| Germany | 75,353 | 41,042 | -34,311 |
| China, Hong Kong Special Administrative Region | 59,889 | 3,703 | -56,186 |
| United Arab Emirates | 59,849 | 3,500 | -56,349 |
| Sweden | 0 | 26,617 | +26,617 |
| Belgium | 11,574 | 9,986 | -1,588 |
| Italy | 5,036 | 13,544 | +8,508 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 3,571,319 |
| Roll on Roll off (RORO) | 220,871 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 1,257,434 | 2,313,885 | +1,056,451 |
| Roll on Roll off (RORO) | 220,871 | 0 | -220,871 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Heathrow Airport | 2,904,580 |
| London Stansted Airport | 352,275 |
| East Midlands Airport | 246,075 |
| London | 220,871 |
| ZLC | 65,798 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| London Heathrow Airport | 775,819 | 2,128,761 | +1,352,942 |
| London Stansted Airport | 308,318 | 43,957 | -264,361 |
| East Midlands Airport | 146,905 | 99,170 | -47,735 |
| London | 220,871 | 0 | -220,871 |
| ZLC | 26,392 | 39,406 | +13,014 |
| Manchester Airport | 0 | 2,591 | +2,591 |
Quick facts
HS code: 710421
Coverage: United Kingdom, most metrics for the last 24 months
Description: Man-made diamonds, not set or mounted, used in jewelry or industry