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)
12.83ct CUSHION D IFlab grownA+£1,423 GBP
21.43ct CUSHION D VVS1lab grownA+£298 GBP
33.14ct PEAR E IFlab grownA+£2,271 GBP
41.43ct CUSHION D VVS2lab grownA+£266 GBP
51.09ct OVAL D VS1lab grownA+£192 GBP
61.07ct ROUND D VVS2lab grownA+£120 GBP
72.84ct ROUND D IFlab grownA+£906 GBP
82.83ct CUSHION D IFlab grownA+£1,423 GBP
92.71ct ROUND D IFlab grownA+£865 GBP
102.63ct HEART D IFlab grownA+£1,494 GBP
112.35ct ROUND D FLlab grownA+£641 GBP
122.34ct ROUND D IFlab grownA+£449 GBP
131.41ct CUSHION D VVS1lab grownA+£294 GBP
143.17ct PEAR E IFlab grownA+£2,292 GBP
152.99ct PRINCESS D IFlab grownA+£1,132 GBP
162.97ct PRINCESS D IFlab grownA+£1,125 GBP
172.97ct CUSHION D IFlab grownA+£1,493 GBP
182.93ct CUSHION D IFlab grownA+£1,473 GBP
192.92ct CUSHION D IFlab grownA+£1,468 GBP
202.90ct CUSHION D IFlab grownA+£1,459 GBP
212.74ct CUSHION D IFlab grownA+£1,379 GBP
222.54ct PEAR D IFlab grownA+£1,525 GBP
232.10ct OVAL D VS1lab grownA+£435 GBP
242.07ct OVAL D VVS1lab grownA+£513 GBP
252.05ct OVAL D VVS1lab grownA+£502 GBP
261.96ct CUSHION D IFlab grownA+£904 GBP
271.93ct CUSHION D IFlab grownA+£890 GBP
281.92ct CUSHION D IFlab grownA+£886 GBP
291.82ct CUSHION D IFlab grownA+£841 GBP
301.54ct ROUND D VVS2lab grownA+£199 GBP
311.40ct CUSHION D VVS1lab grownA+£293 GBP
321.36ct OVAL D VVS1lab grownA+£263 GBP
331.03ct ROUND D FLlab grownA+£169 GBP
341.03ct CUSHION D FLlab grownA+£297 GBP
351.01ct RADIANT D VVS1lab grownA+£200 GBP
361.01ct RADIANT D VVS1lab grownA+£200 GBP
370.99ct HEART D IFlab grownA+£191 GBP
385.07ct ROUND D FLlab grownA+£6,386 GBP
395.06ct PRINCESS D FLlab grownA+£8,366 GBP
403.36ct PRINCESS D IFlab grownA+£1,246 GBP
413.12ct PEAR E IFlab grownA+£2,258 GBP
422.96ct RADIANT E IFlab grownA+£1,475 GBP
432.92ct PRINCESS D IFlab grownA+£1,106 GBP
442.83ct CUSHION D IFlab grownA+£1,423 GBP
452.60ct CUSHION E IFlab grownA+£1,492 GBP
462.54ct PRINCESS E IFlab grownA+£650 GBP
472.36ct PRINCESS D IFlab grownA+£914 GBP
482.21ct OVAL D VVS1lab grownA+£540 GBP
492.14ct OVAL D VVS1lab grownA+£523 GBP
502.13ct OVAL D VVS1lab grownA+£521 GBP
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