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 1 November 2026 · Based on 50 active listings ranked by quality

How to Read the Quality Leaderboard

The quality score is a 0 to 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.

#DiamondOriginGradeLowest Price (USD)
14.16ct ROUND D FLnaturalA+$240,300 USD
23.02ct CUSHION D FLnaturalA+$74,250 USD
32.29ct ROUND D FLnaturalA+$59,160 USD
41.59ct ROUND D FLnaturalA+$15,500 USD
51.53ct EMERALD D FLnaturalA+$12,880 USD
61.10ct ROUND D FLnaturalA+$13,450 USD
71.05ct ROUND D FLnaturalA+$14,100 USD
80.83ct ROUND D FLnaturalA+$5,000 USD
90.82ct ROUND D FLnaturalA+$6,550 USD
100.71ct CUSHION D FLnaturalA+$1,910 USD
115.21ct EMERALD D FLnaturalA+$206,388 USD
122.71ct ROUND D FLnaturalA+$79,470 USD
132.60ct OVAL D FLnaturalA+$47,308 USD
142.03ct PEAR D FLnaturalA+$34,980 USD
151.61ct ROUND D FLnaturalA+$15,730 USD
161.58ct ROUND D FLnaturalA+$14,850 USD
171.53ct ROUND D FLnaturalA+$14,790 USD
181.53ct ROUND D FLnaturalA+$14,790 USD
191.53ct ROUND D FLnaturalA+$14,800 USD
201.30ct ROUND D FLnaturalA+$24,990 USD
211.24ct ROUND D FLnaturalA+$14,930 USD
221.23ct ROUND D FLnaturalA+$26,250 USD
231.12ct ROUND D FLnaturalA+$19,045 USD
241.10ct ROUND D FLnaturalA+$13,580 USD
251.10ct ROUND D FLnaturalA+$13,580 USD
261.10ct ROUND D FLnaturalA+$13,580 USD
271.10ct ROUND D FLnaturalA+$13,580 USD
281.09ct ROUND D FLnaturalA+$12,940 USD
291.08ct ROUND D FLnaturalA+$13,170 USD
301.04ct ROUND D FLnaturalA+$13,380 USD
310.92ct ROUND D FLnaturalA+$7,950 USD
320.82ct ROUND D FLnaturalA+$6,440 USD
330.74ct ROUND D FLnaturalA+$4,090 USD
340.71ct ROUND D FLnaturalA+$3,285 USD
350.71ct ROUND D FLnaturalA+$4,320 USD
360.56ct ROUND D FLnaturalA+$2,680 USD
376.20ct EMERALD D FLnaturalA+$268,349 USD
386.19ct EMERALD D FLnaturalA+$261,120 USD
396.03ct EMERALD D FLnaturalA+$246,068 USD
405.27ct EMERALD D FLnaturalA+$431,519 USD
413.21ct HEART D FLnaturalA+$86,231 USD
422.63ct EMERALD D FLnaturalA+$38,729 USD
432.60ct OVAL D FLnaturalA+$52,490 USD
442.11ct ROUND D FLnaturalA+$54,700 USD
451.73ct EMERALD D FLnaturalA+$18,570 USD
461.70ct EMERALD D FLnaturalA+$17,440 USD
471.59ct ROUND D FLnaturalA+$19,420 USD
481.57ct ROUND D FLnaturalA+$14,030 USD
491.55ct ROUND D FLnaturalA+$22,770 USD
501.53ct ROUND D FLnaturalA+$14,820 USD
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