Top 50 Diamonds by Value in United Kingdom
Our value score combines price, quality, certification and market context. These stones deliver the most per dollar across our inventory. Pricing shown in GBP.
Last updated 14 September 2026 · Based on 50 active listings ranked by value
What 'Best Value' Actually Means Here
Value score isn't just 'cheapest'. It's a composite that combines four signals: price versus peer-median for this exact shape/carat/colour/clarity bucket, our quality score, the certificate's rigour, and market context (how long this stone has been listed, how many retailers carry it, and whether price has moved recently). A stone scoring 95 on value is typically trading 15-30% below the median for its peer group with no compromise on quality.
This is the right list if your brief is 'I want to spend smart money.' We're surfacing diamonds that genuine market data says are under-priced relative to peers. Either because a retailer has unusual pricing, because the stone has been listed for a while, or because the specific spec isn't in high demand right now. Treat each entry as a starting point: click through, look at the photos, and check whether the quality holds up for you.
Value score can reward unusual specs that happen to be cheap but don't match what you want. A 1.5ct K/SI2 in 'Very Good' cut might top the value list but still not be what you're after. Always cross-check against quality score. The ideal buy has both value and quality in the top quartile.
| # | Diamond | Origin | Score | Lowest Price (GBP) |
|---|---|---|---|---|
| 1 | 1.04ct ASSCHER D VVS2 | lab grown | 92 | £145 GBP |
| 2 | 1.10ct ASSCHER F VS2 | lab grown | 92 | £232 GBP |
| 3 | 0.66ct ROUND D VVS1 | lab grown | 92 | £74 GBP |
| 4 | 0.56ct PRINCESS D IF | lab grown | 91 | £105 GBP |
| 5 | 4.11ct ASSCHER D VVS2 | lab grown | 91 | £2,009 GBP |
| 6 | 1.08ct OVAL D VVS2 | lab grown | 91 | £1,153 GBP |
| 7 | 0.71ct PRINCESS D IF | lab grown | 91 | £124 GBP |
| 8 | 0.58ct PRINCESS D IF | lab grown | 91 | £108 GBP |
| 9 | 0.72ct PRINCESS D IF | lab grown | 91 | £137 GBP |
| 10 | 0.65ct ROUND D VVS1 | lab grown | 91 | £70 GBP |
| 11 | 0.64ct ROUND D VVS1 | lab grown | 91 | £69 GBP |
| 12 | 0.73ct ROUND D VVS1 | lab grown | 91 | £74 GBP |
| 13 | 0.72ct ROUND F IF | lab grown | 91 | £313 GBP |
| 14 | 0.65ct ROUND D VVS1 | lab grown | 91 | £70 GBP |
| 15 | 1.99ct RADIANT D IF | lab grown | 91 | £276 GBP |
| 16 | 0.65ct ROUND D VVS1 | lab grown | 91 | £70 GBP |
| 17 | 0.65ct ROUND D VVS1 | lab grown | 91 | £70 GBP |
| 18 | 0.65ct ROUND D VVS1 | lab grown | 91 | £70 GBP |
| 19 | 0.64ct ROUND D VVS1 | lab grown | 91 | £69 GBP |
| 20 | 0.57ct PRINCESS D IF | lab grown | 91 | £98 GBP |
| 21 | 0.54ct ROUND D VVS1 | lab grown | 91 | £64 GBP |
| 22 | 0.54ct ROUND D VVS1 | lab grown | 91 | £64 GBP |
| 23 | 10.04ct ASSCHER H VVS2 | lab grown | 91 | £1,606 GBP |
| 24 | 5.55ct ROUND D FL | lab grown | 91 | £8,103 GBP |
| 25 | 5.18ct ROUND D FL | lab grown | 91 | £7,833 GBP |
| 26 | 2.98ct OVAL D IF | lab grown | 91 | £1,334 GBP |
| 27 | 0.87ct EMERALD D VS1 | lab grown | 91 | £97 GBP |
| 28 | 0.74ct PRINCESS D IF | lab grown | 91 | £140 GBP |
| 29 | 0.64ct ROUND D VVS1 | lab grown | 91 | £69 GBP |
| 30 | 0.54ct ROUND D VVS1 | lab grown | 91 | £64 GBP |
| 31 | 6.59ct ROUND D FL | lab grown | 91 | £10,464 GBP |
| 32 | 5.79ct ROUND D FL | lab grown | 91 | £8,437 GBP |
| 33 | 5.09ct ROUND D FL | lab grown | 91 | £7,996 GBP |
| 34 | 5.07ct ROUND D FL | lab grown | 91 | £7,966 GBP |
| 35 | 2.86ct ROUND D IF | lab grown | 91 | £1,052 GBP |
| 36 | 1.97ct RADIANT D IF | lab grown | 91 | £232 GBP |
| 37 | 1.24ct ROUND D IF | lab grown | 91 | £151 GBP |
| 38 | 1.24ct ROUND D IF | lab grown | 91 | £151 GBP |
| 39 | 1.04ct PEAR D IF | lab grown | 91 | £128 GBP |
| 40 | 0.74ct ROUND D VVS1 | lab grown | 91 | £73 GBP |
| 41 | 0.73ct RADIANT D VVS1 | lab grown | 91 | £99 GBP |
| 42 | 0.73ct PRINCESS D IF | lab grown | 91 | £139 GBP |
| 43 | 0.67ct ROUND D VVS1 | lab grown | 91 | £72 GBP |
| 44 | 0.67ct ROUND D VVS1 | lab grown | 91 | £72 GBP |
| 45 | 0.66ct ROUND D VVS1 | lab grown | 91 | £71 GBP |
| 46 | 0.58ct PRINCESS D VVS1 | lab grown | 91 | £88 GBP |
| 47 | 0.52ct PRINCESS D VVS1 | lab grown | 91 | £81 GBP |
| 48 | 6.51ct ROUND D FL | lab grown | 91 | £10,342 GBP |
| 49 | 2.45ct ROUND D VVS1 | lab grown | 91 | £529 GBP |
| 50 | 1.94ct RADIANT D IF | lab grown | 91 | £269 GBP |
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