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.

#DiamondOriginGradeLowest Price (GBP)
12.08ct OVAL D IFnaturalA+£12,097 GBP
23.20ct HEART E VVS1naturalA+£22,728 GBP
33.01ct HEART E VVS2naturalA+£24,671 GBP
41.32ct ROUND E IFnaturalA+£6,213 GBP
51.30ct PRINCESS D IFnaturalA+£7,789 GBP
62.00ct MARQUISE E IFnaturalA+£14,345 GBP
71.34ct ROUND E IFnaturalA+£6,492 GBP
85.02ct ROUND E IFnaturalA+£115,710 GBP
92.00ct HEART E IFnaturalA+£13,186 GBP
101.33ct ROUND E IFnaturalA+£6,653 GBP
111.33ct ROUND E FLnaturalA+£7,832 GBP
121.25ct ROUND D IFnaturalA+£5,279 GBP
133.21ct HEART D IFnaturalA+£37,540 GBP
141.55ct ROUND E FLnaturalA+£10,115 GBP
151.31ct ROUND D IFnaturalA+£6,579 GBP
165.14ct PEAR D FLnaturalA+£145,940 GBP
172.50ct MARQUISE D IFnaturalA+£30,700 GBP
182.01ct EMERALD D IFnaturalA+£15,451 GBP
191.62ct ROUND D IFnaturalA+£9,838 GBP
201.53ct ROUND E IFnaturalA+£10,140 GBP
211.51ct ROUND E IFnaturalA+£9,508 GBP
221.50ct ROUND E IFnaturalA+£9,266 GBP
231.33ct ROUND E IFnaturalA+£7,456 GBP
240.68ct ROUND D IFnaturalA+£973 GBP
254.02ct HEART D FLnaturalA+£81,929 GBP
263.15ct PEAR D FLnaturalA+£49,138 GBP
273.03ct OVAL D FLnaturalA+£47,105 GBP
281.51ct OVAL D IFnaturalA+£8,747 GBP
291.42ct ROUND E IFnaturalA+£7,143 GBP
301.31ct ROUND E IFnaturalA+£7,369 GBP
311.28ct PEAR E IFnaturalA+£5,130 GBP
321.25ct ROUND E VVS2naturalA+£4,576 GBP
331.01ct MARQUISE D FLnaturalA+£3,006 GBP
340.80ct PEAR D FLnaturalA+£1,723 GBP
350.60ct ROUND E IFnaturalA+£793 GBP
360.53ct ROUND D IFnaturalA+£655 GBP
3710.10ct PEAR E FLnaturalA+£452,648 GBP
382.56ct EMERALD G VVS1naturalA+£13,297 GBP
391.55ct ROUND E IFnaturalA+£11,380 GBP
401.47ct ROUND E IFnaturalA+£9,469 GBP
411.35ct ROUND E IFnaturalA+£6,628 GBP
421.31ct ROUND D FLnaturalA+£6,743 GBP
431.30ct ROUND D VVS2naturalA+£4,701 GBP
441.30ct ROUND E IFnaturalA+£6,633 GBP
451.30ct ROUND D IFnaturalA+£8,353 GBP
461.01ct EMERALD E VVS2naturalA+£1,686 GBP
470.63ct ROUND E IFnaturalA+£665 GBP
480.55ct ROUND E VVS1naturalA+£520 GBP
490.54ct ROUND E IFnaturalA+£648 GBP
500.52ct ROUND E IFnaturalA+£694 GBP
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