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 | 10,083,890 |
| India | 569,552 |
| United States | 355,722 |
| Germany | 281,824 |
| Ireland | 70,391 |
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 | 5,073,268 | 5,010,622 | -62,646 |
| India | 105,013 | 464,539 | +359,526 |
| United States | 143,297 | 212,425 | +69,128 |
| Germany | 57,652 | 224,172 | +166,520 |
| Ireland | 65,663 | 4,728 | -60,935 |
| Belgium | 11,103 | 42,587 | +31,484 |
| Switzerland | 5,657 | 9,453 | +3,796 |
| China, Hong Kong Special Administrative Region | 8,807 | 1,512 | -7,295 |
| China | 0 | 7,802 | +7,802 |
| Netherlands | 0 | 3,156 | +3,156 |
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 | 5,327,859 |
| United Kingdom | 3,308,001 |
| Thailand | 1,730,885 |
| India | 708,791 |
| Germany | 278,527 |
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 | 5,087,406 | 240,453 | -4,846,953 |
| United Kingdom | 31,361 | 3,276,640 | +3,245,279 |
| Thailand | 10,743 | 1,720,142 | +1,709,399 |
| India | 218,676 | 490,115 | +271,439 |
| Germany | 54,355 | 224,172 | +169,817 |
| Ireland | 57,094 | 4,728 | -52,366 |
| China | 7,207 | 7,802 | +595 |
| Belgium | 2,018 | 12,276 | +10,258 |
| Netherlands | 0 | 3,156 | +3,156 |
| China, Hong Kong Special Administrative Region | 1,600 | 1,512 | -88 |
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 |
| North Wales | 1 |
| Outer London - West and North West | 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 | 1 | 0 | -1 |
| North Wales | 1 | 1 | +0 |
| Outer London - West and North West | 1 | 0 | -1 |
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 | 11,443,740 |
| Sea transport (not vehicle on ferry) | 9,947 |
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 | 5,465,869 | 5,977,871 | +512,002 |
| Sea transport (not vehicle on ferry) | 4,591 | 5,356 | +765 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Heathrow Airport | 10,705,421 |
| East Midlands Airport | 503,497 |
| London Stansted Airport | 228,656 |
| London Gateway Port | 5,478 |
| Manchester Airport | 5,220 |
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 | 5,216,737 | 5,488,684 | +271,947 |
| East Midlands Airport | 63,743 | 439,754 | +376,011 |
| London Stansted Airport | 184,443 | 44,213 | -140,230 |
| London Gateway Port | 1,276 | 4,202 | +2,926 |
| Manchester Airport | 0 | 5,220 | +5,220 |
| Thamesport | 3,315 | 1,154 | -2,161 |
| Birmingham Airport | 946 | 0 | -946 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
|
Other manufacturing
|
2 |
|
Wholesale trade, except of motor vehicles and motorcycles
|
2 |
|
Architectural and engineering activities; technical testing and analysis
|
1 |
|
Manufacture of computer, electronic and optical products
|
1 |
|
Scientific research and development
|
1 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-05 | 1 |
| 2026-04 | 2 |
| 2026-03 | 2 |
| 2026-02 | 1 |
| 2026-01 | 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+ | 2 |
| 15m-54m | 1 |
| 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 | 2,246,461 |
| India | 562,947 |
| United States | 172,438 |
| Germany | 122,118 |
| Canada | 121,280 |
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 | 356,453 | 1,890,008 | +1,533,555 |
| India | 114,520 | 448,427 | +333,907 |
| United States | 166,194 | 6,244 | -159,950 |
| Germany | 61,474 | 60,644 | -830 |
| Canada | 90,378 | 30,902 | -59,476 |
| United Arab Emirates | 63,349 | 0 | -63,349 |
| China, Hong Kong Special Administrative Region | 28,991 | 3,703 | -25,288 |
| Sweden | 26,617 | 0 | -26,617 |
| Italy | 11,548 | 11,500 | -48 |
| Belgium | 15,922 | 0 | -15,922 |
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 | 3,443,796 |
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 | 968,573 | 2,475,223 | +1,506,650 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Heathrow Airport | 2,843,552 |
| London Stansted Airport | 313,523 |
| East Midlands Airport | 234,362 |
| ZLC | 49,768 |
| Manchester Airport | 2,591 |
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 | 501,538 | 2,342,014 | +1,840,476 |
| London Stansted Airport | 281,287 | 32,236 | -249,051 |
| East Midlands Airport | 138,695 | 95,667 | -43,028 |
| ZLC | 44,462 | 5,306 | -39,156 |
| Manchester Airport | 2,591 | 0 | -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