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Top 50 Diamonds Overall in United Kingdom

The cream of the crop across every dimension: gemological quality, value per dollar, and certification rigour rolled into one composite score. Pricing shown in GBP.

Last updated 15 September 2026 · Based on 50 active listings ranked by overall

How to Read the Overall Leaderboard

The overall score is a 0-100 composite of three signals we already publish individually: quality (how well the stone is made), value (price versus the peer-median for its spec), and certification (how rigorous the grading lab is). A high overall score means the stone wins on all three at once, not just one. The diamonds at the top of this list are the ones the market is putting forward today as genuinely the best available.

Use this when you do not have a strong preference yet and want to see what the market is rewarding right now. The overall list mixes natural and lab-grown freely, so do not be surprised to see them side by side. If you have a hard preference for one origin, use the Natural / Lab-grown / Fancy tabs above to filter.

Composite scores hide the trade-offs. A diamond at 92 overall might be 99 quality and 85 value, or 88 quality and 96 value. Click any entry to see the full breakdown, and use the per-metric leaderboards (quality, value, certification) when you want to optimise for one axis specifically.

#DiamondOriginScoreLowest Price (GBP)
11.04ct ASSCHER D VVS2lab grown92£136 GBP
21.10ct ASSCHER F VS2lab grown92£219 GBP
30.66ct ROUND D VVS1lab grown92£70 GBP
40.56ct PRINCESS D IFlab grown92£97 GBP
50.58ct PRINCESS D IFlab grown91£100 GBP
64.11ct ASSCHER D VVS2lab grown91£1,893 GBP
71.08ct OVAL D VVS2lab grown91£1,086 GBP
80.72ct PRINCESS D IFlab grown91£128 GBP
90.71ct PRINCESS D IFlab grown91£116 GBP
100.65ct ROUND D VVS1lab grown91£66 GBP
110.64ct ROUND D VVS1lab grown91£65 GBP
120.74ct PRINCESS D IFlab grown91£131 GBP
130.72ct ROUND F IFlab grown91£295 GBP
140.65ct ROUND D VVS1lab grown91£66 GBP
150.57ct PRINCESS D IFlab grown91£92 GBP
160.73ct ROUND D VVS1lab grown91£103 GBP
170.73ct ROUND D VVS1lab grown91£103 GBP
180.73ct PRINCESS D IFlab grown91£129 GBP
190.72ct ROUND D VVS1lab grown91£102 GBP
200.72ct ROUND D VVS1lab grown91£102 GBP
210.72ct ROUND D VVS1lab grown91£102 GBP
220.72ct PRINCESS D IFlab grown91£131 GBP
230.65ct ROUND D VVS1lab grown91£66 GBP
240.65ct ROUND D VVS1lab grown91£66 GBP
250.65ct ROUND D VVS1lab grown91£66 GBP
260.64ct ROUND D VVS1lab grown91£65 GBP
270.58ct PRINCESS D VVS1lab grown91£82 GBP
280.54ct ROUND D VVS1lab grown91£60 GBP
290.54ct ROUND D VVS1lab grown91£60 GBP
300.54ct ROUND D VVS1lab grown91£60 GBP
310.54ct PRINCESS D IFlab grown91£94 GBP
3210.04ct ASSCHER H VVS2lab grown91£1,513 GBP
335.55ct ROUND D FLlab grown91£7,632 GBP
345.18ct ROUND D FLlab grown91£7,378 GBP
352.98ct OVAL D IFlab grown91£1,256 GBP
360.88ct OVAL D IFlab grown91£133 GBP
370.87ct EMERALD D VS1lab grown91£92 GBP
380.74ct OVAL D IFlab grown91£122 GBP
390.73ct OVAL D VVS1lab grown91£102 GBP
400.73ct ROUND D VVS1lab grown91£103 GBP
410.71ct ROUND D VVS1lab grown91£100 GBP
420.69ct ROUND D VVS1lab grown91£69 GBP
430.64ct ROUND D VVS1lab grown91£65 GBP
440.59ct PRINCESS D VVS1lab grown91£84 GBP
450.54ct PRINCESS D VVS1lab grown91£78 GBP
460.52ct PRINCESS D VVS1lab grown91£76 GBP
476.59ct ROUND D FLlab grown91£9,856 GBP
485.79ct ROUND D FLlab grown91£7,947 GBP
495.09ct ROUND D FLlab grown91£7,532 GBP
505.07ct ROUND D FLlab grown91£7,503 GBP
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