Top 50 Diamonds by Value in United States

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

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/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 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 (USD)
12.08ct OVAL D IFnaturalA+$16,073 USD
21.32ct ROUND E IFnaturalA+$8,205 USD
31.30ct PRINCESS D IFnaturalA+$10,350 USD
42.00ct MARQUISE E IFnaturalA+$19,040 USD
51.34ct ROUND E IFnaturalA+$8,634 USD
65.02ct ROUND E IFnaturalA+$153,752 USD
73.03ct OVAL D FLnaturalA+$62,323 USD
81.33ct ROUND E IFnaturalA+$8,840 USD
91.33ct ROUND E FLnaturalA+$10,330 USD
103.21ct HEART D IFnaturalA+$49,882 USD
111.25ct ROUND D IFnaturalA+$7,014 USD
121.55ct ROUND E FLnaturalA+$13,440 USD
131.31ct ROUND D IFnaturalA+$8,742 USD
145.14ct PEAR D FLnaturalA+$193,920 USD
152.00ct HEART E IFnaturalA+$16,727 USD
163.15ct PEAR D FLnaturalA+$64,883 USD
172.50ct MARQUISE D IFnaturalA+$40,793 USD
182.01ct EMERALD D IFnaturalA+$20,531 USD
191.62ct ROUND D IFnaturalA+$13,073 USD
201.53ct ROUND E IFnaturalA+$13,473 USD
211.51ct ROUND E IFnaturalA+$12,480 USD
221.33ct ROUND E IFnaturalA+$9,907 USD
231.01ct MARQUISE D FLnaturalA+$3,878 USD
240.68ct ROUND D IFnaturalA+$1,293 USD
256.79ct ROUND D FLnaturalA+$199,462 USD
262.56ct EMERALD G VVS1naturalA+$17,669 USD
271.51ct OVAL D IFnaturalA+$11,622 USD
281.42ct ROUND E IFnaturalA+$9,492 USD
291.31ct ROUND E IFnaturalA+$9,792 USD
301.28ct PEAR E IFnaturalA+$6,817 USD
311.25ct ROUND E VVS2naturalA+$6,080 USD
320.80ct PEAR D FLnaturalA+$2,291 USD
330.60ct ROUND E IFnaturalA+$1,055 USD
340.53ct ROUND D IFnaturalA+$870 USD
3510.10ct PEAR E FLnaturalA+$601,461 USD
364.02ct HEART D FLnaturalA+$108,864 USD
373.03ct HEART D IFnaturalA+$60,417 USD
383.01ct HEART E VVS2naturalA+$31,112 USD
391.47ct ROUND E IFnaturalA+$12,582 USD
401.35ct ROUND E IFnaturalA+$8,806 USD
411.31ct ROUND D FLnaturalA+$8,960 USD
421.30ct ROUND D VVS2naturalA+$6,246 USD
431.30ct ROUND E IFnaturalA+$8,821 USD
441.30ct ROUND D IFnaturalA+$10,920 USD
451.01ct EMERALD E VVS2naturalA+$2,240 USD
460.63ct ROUND E IFnaturalA+$883 USD
470.55ct ROUND E VVS1naturalA+$691 USD
480.54ct ROUND E IFnaturalA+$861 USD
490.53ct ROUND D IFnaturalA+$1,078 USD
500.52ct ROUND E IFnaturalA+$922 USD
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