Top 50 Diamonds by Value

Our value score combines price, quality, certification and market context. These stones deliver the most per dollar across our inventory.

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/color/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 15-30% 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.

#DiamondOriginScoreLowest Price (JPY)
10.36ct PRINCESS F IFnatural94¥36,322 JPY
21.03ct EMERALD E VVS1natural94¥243,296 JPY
30.46ct PRINCESS G IFnatural94¥45,242 JPY
40.54ct ROUND F IFlab grown94¥44,030 JPY
50.31ct ROUND E IFnatural94¥47,176 JPY
60.53ct MARQUISE D VVS1natural94¥82,854 JPY
71.30ct EMERALD D IFnatural94¥514,424 JPY
80.32ct PRINCESS D VVS2natural93¥30,304 JPY
90.78ct CUSHION D IFnatural93¥137,875 JPY
101.20ct EMERALD G VVS1natural93¥252,967 JPY
110.81ct ROUND E IFnatural93¥291,869 JPY
122.63ct EMERALD D FLnatural93¥2,367,610 JPY
130.31ct OVAL D IFnatural93¥42,878 JPY
140.38ct OVAL D IFnatural93¥59,964 JPY
150.42ct OVAL D IFnatural93¥62,221 JPY
160.65ct CUSHION E FLnatural93¥75,224 JPY
170.60ct ROUND E IFnatural93¥141,206 JPY
182.20ct MARQUISE D FLnatural93¥4,123,915 JPY
190.43ct ROUND D IFnatural93¥84,896 JPY
200.53ct ROUND E IFnatural93¥135,618 JPY
210.55ct ROUND E IFnatural93¥143,678 JPY
220.79ct CUSHION E IFnatural93¥170,113 JPY
230.77ct EMERALD D IFnatural93¥170,221 JPY
241.03ct EMERALD E IFnatural93¥422,221 JPY
252.01ct EMERALD D FLnatural93¥2,009,221 JPY
260.33ct PRINCESS D VVS2natural93¥32,239 JPY
270.31ct RADIANT E IFnatural93¥57,463 JPY
280.41ct ROUND F IFnatural93¥59,642 JPY
290.33ct RADIANT E IFnatural93¥61,194 JPY
300.42ct RADIANT E IFnatural93¥62,985 JPY
310.41ct ROUND D IFnatural93¥65,337 JPY
321.00ct EMERALD F VVS1natural93¥244,370 JPY
331.23ct EMERALD E VVS2natural93¥261,672 JPY
341.27ct EMERALD F VVS1natural93¥393,313 JPY
352.10ct MARQUISE E IFnatural93¥3,857,816 JPY
363.15ct EMERALD G FLnatural93¥5,018,285 JPY
373.00ct PEAR E IFnatural93¥6,559,785 JPY
380.40ct OVAL E IFnatural93¥51,797 JPY
390.40ct OVAL E IFnatural93¥58,567 JPY
400.31ct ROUND E FLnatural93¥61,940 JPY
410.34ct ASSCHER E VVS1natural93¥63,045 JPY
420.50ct MARQUISE E VVS1natural93¥83,176 JPY
430.48ct ROUND D IFnatural93¥88,227 JPY
440.56ct ROUND E IFnatural93¥149,373 JPY
451.01ct EMERALD D VVS1natural93¥243,403 JPY
461.01ct EMERALD D VVS1natural93¥276,287 JPY
471.00ct EMERALD D VVS2natural93¥286,496 JPY
482.20ct MARQUISE D IFnatural93¥2,381,354 JPY
490.31ct ROUND E VVS1natural93¥41,194 JPY
500.33ct ROUND E IFnatural93¥51,260 JPY
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