Top 50 Diamonds by Quality in United States

Pure gemological quality: cut, polish, symmetry, proportions. The best-made diamonds available right now. Pricing shown in USD.

Last updated 14 September 2026 · Based on 50 active listings ranked by quality

How to Read the Quality Leaderboard

The quality score is a 0-100 index that weights the things that make a diamond actually look good: cut grade first, then polish and symmetry, then proportions (table %, depth %, length-to-width ratio). It deliberately ignores color and clarity, because those grades affect paper value more than appearance, and we want this list to surface diamonds that will look exceptional in person.

Use this list when you care more about sparkle and fire than paper grades. A 1.2ct H/SI1 at 98 quality will out-perform a 1.2ct D/FL at 85 quality in every real-world lighting condition. The light return, the brilliance, the way the facets are aligned. If your priority is 'the stone that looks the most alive when she glances down at her hand,' start here.

These rankings refresh throughout the day as new stones are added and old ones sell out. A stone in the top 10 today may be gone tomorrow. Click any entry to see full specs, multiple retailer prices (where the same certificate number is listed across our network), and side-by-side comparisons.

#DiamondOriginScoreLowest Price (USD)
17.52ct CUSHION D FLnatural99$624,817 USD
24.16ct ROUND D FLnatural99$240,300 USD
33.02ct CUSHION D FLnatural99$74,250 USD
42.02ct EMERALD D FLnatural99$27,910 USD
52.01ct EMERALD D FLnatural99$28,100 USD
61.59ct ROUND D FLnatural99$19,420 USD
71.07ct EMERALD D FLnatural99$6,890 USD
81.05ct ROUND D FLnatural99$14,100 USD
91.03ct EMERALD D FLnatural99$7,450 USD
101.01ct ROUND D FLnatural99$14,480 USD
110.82ct ROUND D FLnatural99$6,550 USD
125.21ct EMERALD D FLnatural99$207,501 USD
134.13ct EMERALD D FLnatural99$161,302 USD
143.99ct RADIANT D FLnatural99$25,380 USD
152.60ct OVAL D FLnatural99$47,308 USD
162.03ct PEAR D FLnatural99$34,980 USD
171.61ct ROUND D FLnatural99$19,340 USD
181.58ct ROUND D FLnatural99$18,700 USD
191.53ct ROUND D FLnatural99$18,280 USD
201.53ct ROUND D FLnatural99$18,370 USD
211.53ct ROUND D FLnatural99$18,370 USD
221.30ct ROUND D FLnatural99$28,870 USD
231.23ct ROUND D FLnatural99$26,250 USD
241.15ct ROUND D FLnatural99$12,948 USD
251.14ct ROUND D FLnatural99$10,778 USD
261.12ct ROUND D FLnatural99$23,060 USD
271.09ct ROUND D FLnatural99$12,940 USD
280.92ct ROUND D FLnatural99$7,950 USD
290.84ct ROUND D FLnatural99$2,780 USD
300.82ct ROUND D FLnatural99$6,440 USD
310.74ct ROUND D FLnatural99$4,050 USD
320.56ct PEAR D FLnatural99$1,490 USD
336.20ct EMERALD D FLnatural99$268,149 USD
346.19ct EMERALD D FLnatural99$270,890 USD
356.03ct EMERALD D FLnatural99$260,799 USD
365.27ct EMERALD D FLnatural99$345,433 USD
373.61ct EMERALD D FLnatural99$78,257 USD
383.21ct HEART D FLnatural99$85,510 USD
392.63ct EMERALD D FLnatural99$37,656 USD
402.60ct OVAL D FLnatural99$52,490 USD
411.73ct EMERALD D FLnatural99$18,570 USD
421.70ct EMERALD D FLnatural99$17,440 USD
431.59ct OVAL D FLnatural99$19,020 USD
441.59ct ROUND D FLnatural99$19,420 USD
451.57ct ROUND D FLnatural99$17,070 USD
461.53ct ROUND D FLnatural99$18,280 USD
471.30ct OVAL D FLnatural99$13,770 USD
480.91ct EMERALD D FLnatural99$3,546 USD
490.90ct ROUND D FLnatural99$8,170 USD
500.51ct ROUND D FLnatural99$2,307 USD
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