Top 50 Diamonds by Quality
Our quality score measures pure gemological quality. Cut, polish, symmetry, and proportions. These are the best-made stones in the market right now.
How to Read the Quality Leaderboard
The quality score is a 0-100 index that weights the things that make a diamond actually look good: cut grade first, then polish and symmetry, then proportions (table %, depth %, length-to-width ratio). It deliberately ignores color and clarity, because those grades affect paper value more than appearance, and we want this list to surface diamonds that will look exceptional in person.
Use this list when you care more about sparkle and fire than paper grades. A 1.2ct H/SI1 at 98 quality will out-perform a 1.2ct D/FL at 85 quality in every real-world lighting condition. The light return, the brilliance, the way the facets are aligned. If your priority is 'the stone that looks the most alive when she glances down at her hand,' start here.
These rankings refresh every 24 hours as new stones are added and old ones sell out. A stone in the top 10 today may be gone tomorrow. Click any entry to see full specs, multiple retailer prices (where the same certificate number is listed across our network), and side-by-side comparisons.
| # | Diamond | Origin | Score | Lowest Price (GBP) |
|---|---|---|---|---|
| 1 | 0.71ct OVAL D FL | lab grown | 100 | £424 GBP |
| 2 | 2.16ct MARQUISE D FL | lab grown | 100 | £7,000 GBP |
| 3 | 1.02ct OVAL D FL | natural | 100 | £7,165 GBP |
| 4 | 1.21ct OVAL D FL | natural | 100 | £8,236 GBP |
| 5 | 1.31ct EMERALD D FL | natural | 100 | £8,729 GBP |
| 6 | 1.33ct ROUND D FL | natural | 100 | £9,271 GBP |
| 7 | 3.02ct PRINCESS D FL | lab grown | 100 | £12,504 GBP |
| 8 | 3.11ct PRINCESS D FL | lab grown | 100 | £12,874 GBP |
| 9 | 3.20ct PRINCESS D FL | lab grown | 100 | £13,252 GBP |
| 10 | 3.35ct PRINCESS D FL | lab grown | 100 | £13,866 GBP |
| 11 | 3.22ct MARQUISE D FL | lab grown | 100 | £13,890 GBP |
| 12 | 3.02ct ROUND D FL | lab grown | 100 | £14,669 GBP |
| 13 | 1.55ct ROUND D FL | natural | 100 | £14,775 GBP |
| 14 | 1.37ct ROUND D FL | natural | 100 | £15,646 GBP |
| 15 | 3.37ct OVAL D FL | lab grown | 100 | £16,622 GBP |
| 16 | 3.45ct OVAL D FL | lab grown | 100 | £17,016 GBP |
| 17 | 3.49ct OVAL D FL | lab grown | 100 | £17,213 GBP |
| 18 | 1.71ct OVAL D FL | natural | 100 | £18,008 GBP |
| 19 | 3.85ct PRINCESS D FL | lab grown | 100 | £18,496 GBP |
| 20 | 4.04ct CUSHION D FL | lab grown | 100 | £21,268 GBP |
| 21 | 4.09ct PRINCESS D FL | lab grown | 100 | £22,283 GBP |
| 22 | 4.35ct ROUND D FL | lab grown | 100 | £25,039 GBP |
| 23 | 4.66ct HEART D FL | lab grown | 100 | £25,150 GBP |
| 24 | 4.43ct ROUND D FL | lab grown | 100 | £25,496 GBP |
| 25 | 2.15ct ROUND D FL | natural | 100 | £47,126 GBP |
| 26 | 2.11ct ROUND D FL | natural | 100 | £54,066 GBP |
| 27 | 3.09ct PRINCESS D FL | natural | 100 | £64,920 GBP |
| 28 | 5.11ct ROUND D FL | natural | 100 | £310,192 GBP |
| 29 | 5.18ct ROUND D FL | natural | 100 | £317,645 GBP |
| 30 | 5.18ct ROUND D FL | natural | 100 | £333,679 GBP |
| 31 | 9.09ct ROUND D FL | natural | 100 | £619,401 GBP |
| 32 | 0.74ct OVAL D IF | lab grown | 99 | £780 GBP |
| 33 | 1.07ct OVAL D IF | lab grown | 99 | £1,366 GBP |
| 34 | 1.29ct PRINCESS D IF | lab grown | 99 | £2,311 GBP |
| 35 | 1.66ct PRINCESS D IF | lab grown | 99 | £2,824 GBP |
| 36 | 2.01ct EMERALD D IF | lab grown | 99 | £4,559 GBP |
| 37 | 0.33ct ROUND D IF | natural | 99 | £641 GBP |
| 38 | 0.51ct ROUND D IF | natural | 99 | £1,735 GBP |
| 39 | 2.21ct ROUND D IF | lab grown | 99 | £2,938 GBP |
| 40 | 2.57ct ROUND D IF | lab grown | 99 | £5,764 GBP |
| 41 | 2.65ct ROUND D IF | lab grown | 99 | £5,906 GBP |
| 42 | 3.08ct CUSHION D IF | lab grown | 99 | £10,173 GBP |
| 43 | 2.01ct PEAR D IF | natural | 99 | £24,162 GBP |
| 44 | 2.01ct OVAL D IF | natural | 99 | £24,345 GBP |
| 45 | 0.32ct ROUND D FL | lab grown | 99 | £154 GBP |
| 46 | 0.33ct ROUND D FL | lab grown | 99 | £157 GBP |
| 47 | 0.34ct ROUND D FL | lab grown | 99 | £161 GBP |
| 48 | 0.48ct ROUND D FL | lab grown | 99 | £200 GBP |
| 49 | 0.50ct ROUND D FL | lab grown | 99 | £205 GBP |
| 50 | 0.50ct ROUND D FL | lab grown | 99 | £205 GBP |
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