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 29 October 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 to 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 | Grade | Lowest Price (GBP) |
|---|---|---|---|---|
| 1 | 2.83ct CUSHION D IF | lab grown | A+ | £1,423 GBP |
| 2 | 1.43ct CUSHION D VVS1 | lab grown | A+ | £298 GBP |
| 3 | 3.14ct PEAR E IF | lab grown | A+ | £2,271 GBP |
| 4 | 1.43ct CUSHION D VVS2 | lab grown | A+ | £266 GBP |
| 5 | 1.09ct OVAL D VS1 | lab grown | A+ | £192 GBP |
| 6 | 1.07ct ROUND D VVS2 | lab grown | A+ | £120 GBP |
| 7 | 2.84ct ROUND D IF | lab grown | A+ | £906 GBP |
| 8 | 2.83ct CUSHION D IF | lab grown | A+ | £1,423 GBP |
| 9 | 2.71ct ROUND D IF | lab grown | A+ | £865 GBP |
| 10 | 2.63ct HEART D IF | lab grown | A+ | £1,494 GBP |
| 11 | 2.35ct ROUND D FL | lab grown | A+ | £641 GBP |
| 12 | 2.34ct ROUND D IF | lab grown | A+ | £449 GBP |
| 13 | 1.41ct CUSHION D VVS1 | lab grown | A+ | £294 GBP |
| 14 | 3.17ct PEAR E IF | lab grown | A+ | £2,292 GBP |
| 15 | 2.99ct PRINCESS D IF | lab grown | A+ | £1,132 GBP |
| 16 | 2.97ct PRINCESS D IF | lab grown | A+ | £1,125 GBP |
| 17 | 2.97ct CUSHION D IF | lab grown | A+ | £1,493 GBP |
| 18 | 2.93ct CUSHION D IF | lab grown | A+ | £1,473 GBP |
| 19 | 2.92ct CUSHION D IF | lab grown | A+ | £1,468 GBP |
| 20 | 2.90ct CUSHION D IF | lab grown | A+ | £1,459 GBP |
| 21 | 2.74ct CUSHION D IF | lab grown | A+ | £1,379 GBP |
| 22 | 2.54ct PEAR D IF | lab grown | A+ | £1,525 GBP |
| 23 | 2.10ct OVAL D VS1 | lab grown | A+ | £435 GBP |
| 24 | 2.07ct OVAL D VVS1 | lab grown | A+ | £513 GBP |
| 25 | 2.05ct OVAL D VVS1 | lab grown | A+ | £502 GBP |
| 26 | 1.96ct CUSHION D IF | lab grown | A+ | £904 GBP |
| 27 | 1.93ct CUSHION D IF | lab grown | A+ | £890 GBP |
| 28 | 1.92ct CUSHION D IF | lab grown | A+ | £886 GBP |
| 29 | 1.82ct CUSHION D IF | lab grown | A+ | £841 GBP |
| 30 | 1.54ct ROUND D VVS2 | lab grown | A+ | £199 GBP |
| 31 | 1.40ct CUSHION D VVS1 | lab grown | A+ | £293 GBP |
| 32 | 1.36ct OVAL D VVS1 | lab grown | A+ | £263 GBP |
| 33 | 1.03ct ROUND D FL | lab grown | A+ | £169 GBP |
| 34 | 1.03ct CUSHION D FL | lab grown | A+ | £297 GBP |
| 35 | 1.01ct RADIANT D VVS1 | lab grown | A+ | £200 GBP |
| 36 | 1.01ct RADIANT D VVS1 | lab grown | A+ | £200 GBP |
| 37 | 0.99ct HEART D IF | lab grown | A+ | £191 GBP |
| 38 | 5.07ct ROUND D FL | lab grown | A+ | £6,386 GBP |
| 39 | 5.06ct PRINCESS D FL | lab grown | A+ | £8,366 GBP |
| 40 | 3.36ct PRINCESS D IF | lab grown | A+ | £1,246 GBP |
| 41 | 3.12ct PEAR E IF | lab grown | A+ | £2,258 GBP |
| 42 | 2.96ct RADIANT E IF | lab grown | A+ | £1,475 GBP |
| 43 | 2.92ct PRINCESS D IF | lab grown | A+ | £1,106 GBP |
| 44 | 2.83ct CUSHION D IF | lab grown | A+ | £1,423 GBP |
| 45 | 2.60ct CUSHION E IF | lab grown | A+ | £1,492 GBP |
| 46 | 2.54ct PRINCESS E IF | lab grown | A+ | £650 GBP |
| 47 | 2.36ct PRINCESS D IF | lab grown | A+ | £914 GBP |
| 48 | 2.21ct OVAL D VVS1 | lab grown | A+ | £540 GBP |
| 49 | 2.14ct OVAL D VVS1 | lab grown | A+ | £523 GBP |
| 50 | 2.13ct OVAL D VVS1 | lab grown | A+ | £521 GBP |
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