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 August 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 ROUND D FLlab grown99$45,588 USD
27.07ct ROUND D FLlab grown99$40,607 USD
37.04ct ROUND D FLlab grown99$47,533 USD
46.35ct OVAL D FLlab grown99$51,830 USD
56.13ct ROUND D FLlab grown99$15,781 USD
66.13ct ROUND D FLlab grown99$15,781 USD
76.05ct ROUND D FLlab grown99$49,483 USD
86.04ct ROUND D FLlab grown99$18,399 USD
96.04ct ROUND D FLlab grown99$45,050 USD
106.01ct ROUND D FLlab grown99$20,100 USD
115.86ct ROUND D FLlab grown99$28,065 USD
125.84ct ROUND D FLlab grown99$11,813 USD
135.74ct ROUND D FLlab grown99$11,617 USD
145.70ct ROUND D FLlab grown99$9,380 USD
155.62ct ROUND D FLlab grown99$6,412 USD
165.62ct ROUND D FLlab grown99$9,211 USD
175.61ct RADIANT D FLlab grown99$15,269 USD
185.51ct ROUND D FLlab grown99$10,547 USD
195.42ct ROUND D FLlab grown99$9,443 USD
205.41ct ROUND D FLlab grown99$9,413 USD
215.37ct EMERALD D FLlab grown99$14,229 USD
225.35ct ROUND D FLlab grown99$8,430 USD
235.33ct ROUND D FLlab grown99$8,382 USD
245.29ct ROUND D FLlab grown99$8,595 USD
255.28ct ROUND D FLlab grown99$10,099 USD
265.27ct ROUND D FLlab grown99$46,370 USD
275.26ct ROUND D FLlab grown99$10,061 USD
285.26ct ROUND D FLlab grown99$10,176 USD
295.24ct ROUND D FLlab grown99$7,640 USD
305.24ct ROUND D FLlab grown99$8,127 USD
315.22ct ROUND D FLlab grown99$6,586 USD
325.22ct ROUND D FLlab grown99$11,028 USD
335.18ct ROUND D FLlab grown99$8,288 USD
345.10ct EMERALD D FLlab grown99$10,143 USD
355.10ct EMERALD D FLlab grown99$11,897 USD
365.10ct EMERALD D FLlab grown99$34,100 USD
375.09ct ROUND D FLlab grown99$9,741 USD
385.09ct RADIANT D FLlab grown99$10,179 USD
395.09ct ROUND D FLlab grown99$37,790 USD
405.09ct ROUND D FLlab grown99$48,200 USD
415.08ct ROUND D FLlab grown99$8,934 USD
425.08ct PRINCESS D FLlab grown99$17,429 USD
435.07ct ROUND D FLlab grown99$7,931 USD
445.06ct ROUND D FLlab grown99$7,629 USD
455.06ct ROUND D FLlab grown99$7,629 USD
465.06ct PRINCESS D FLlab grown99$13,194 USD
475.06ct PEAR D FLlab grown99$14,692 USD
485.06ct PRINCESS D FLlab grown99$17,793 USD
495.06ct PEAR D FLlab grown99$33,830 USD
505.05ct ROUND D FLlab grown99$7,602 USD
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