Top 50 Diamonds by Certification Score in Hong Kong
Ranked by certificate rigour. GIA and AGS stones with complete grading, clear symmetry, and verified provenance come out on top. Pricing shown in HKD.
Last updated 15 September 2026 · Based on 50 active listings ranked by certification
What Certification Score Rewards
Certification score measures the rigour and completeness of the grading report behind each diamond. It weights the grading lab (GIA and AGS lead; IGI and HRD follow; newer or less-consistent labs are lower), the presence of a polish and symmetry grade (required for Excellent-cut claims), and the completeness of the proportions data. It's not measuring the diamond itself. It's measuring how confident you can be that the grades on paper match what you'll receive.
Use this list when you're buying at a price point where certification rigour matters most. Say, above $10,000, or when the stone will be insured, resold, or given as a gift with a certificate presentation. The top of this list is where the paper trail is strongest: full GIA reports with polish and symmetry grades, complete measurement data, and a clean provenance.
A high certification score doesn't mean the stone is beautiful. It just means the grading is trustworthy. Cross-reference with quality score for stones that are both well-documented and well-made. For lab-grown, IGI tops this list more often than GIA because IGI has become the default lab-grown certifier and has the most complete reports for that segment.
| # | Diamond | Origin | Score | Lowest Price (HKD) |
|---|---|---|---|---|
| 1 | 8.04ct ROUND K SI1 | natural | 100 | HK$970,412 HKD |
| 2 | 8.03ct OVAL G VS2 | natural | 100 | HK$3,075,214 HKD |
| 3 | 7.03ct CUSHION F VS2 | natural | 100 | HK$2,338,900 HKD |
| 4 | 7.01ct PEAR I SI2 | natural | 100 | HK$702,240 HKD |
| 5 | 5.30ct CUSHION D FL | natural | 100 | HK$1,498,507 HKD |
| 6 | 5.02ct OVAL H SI1 | natural | 100 | HK$856,930 HKD |
| 7 | 5.01ct ROUND H SI2 | natural | 100 | HK$361,270 HKD |
| 8 | 5.01ct CUSHION G SI1 | natural | 100 | HK$511,132 HKD |
| 9 | 4.50ct ROUND H VVS1 | natural | 100 | HK$297,471 HKD |
| 10 | 4.07ct OVAL H VVS2 | natural | 100 | HK$554,414 HKD |
| 11 | 4.03ct PRINCESS I VS2 | natural | 100 | HK$393,477 HKD |
| 12 | 4.03ct HEART E VS2 | natural | 100 | HK$629,403 HKD |
| 13 | 4.02ct HEART H SI1 | natural | 100 | HK$312,654 HKD |
| 14 | 4.01ct ROUND J SI1 | natural | 100 | HK$234,634 HKD |
| 15 | 4.01ct ROUND H SI2 | natural | 100 | HK$263,340 HKD |
| 16 | 3.52ct OVAL J SI1 | natural | 100 | HK$236,447 HKD |
| 17 | 3.33ct ASSCHER L VS1 | natural | 100 | HK$177,430 HKD |
| 18 | 3.10ct HEART I SI2 | natural | 100 | HK$99,154 HKD |
| 19 | 3.05ct OVAL K SI1 | natural | 100 | HK$137,912 HKD |
| 20 | 3.04ct HEART I SI2 | natural | 100 | HK$88,486 HKD |
| 21 | 3.04ct OVAL J SI2 | natural | 100 | HK$126,445 HKD |
| 22 | 3.02ct RADIANT H SI2 | natural | 100 | HK$232,520 HKD |
| 23 | 3.02ct ROUND F VS1 | natural | 100 | HK$564,413 HKD |
| 24 | 3.01ct CUSHION J VS2 | natural | 100 | HK$81,897 HKD |
| 25 | 3.01ct OVAL I SI2 | natural | 100 | HK$110,686 HKD |
| 26 | 3.01ct ROUND H SI2 | natural | 100 | HK$119,833 HKD |
| 27 | 3.01ct ROUND F SI2 | natural | 100 | HK$141,103 HKD |
| 28 | 3.01ct OVAL J SI2 | natural | 100 | HK$164,499 HKD |
| 29 | 3.01ct OVAL K SI1 | natural | 100 | HK$172,831 HKD |
| 30 | 3.01ct OVAL F SI1 | natural | 100 | HK$308,940 HKD |
| 31 | 3.01ct OVAL G VVS2 | natural | 100 | HK$324,558 HKD |
| 32 | 3.01ct ROUND G VS2 | natural | 100 | HK$407,953 HKD |
| 33 | 2.68ct CUSHION D VS1 | natural | 100 | HK$155,378 HKD |
| 34 | 2.53ct ROUND I SI2 | natural | 100 | HK$127,373 HKD |
| 35 | 2.52ct OVAL D VS1 | natural | 100 | HK$362,317 HKD |
| 36 | 2.51ct OVAL D VVS1 | natural | 100 | HK$278,986 HKD |
| 37 | 2.50ct ROUND H VVS2 | natural | 100 | HK$150,872 HKD |
| 38 | 2.42ct ROUND I VVS1 | natural | 100 | HK$108,882 HKD |
| 39 | 2.34ct ROUND G SI2 | natural | 100 | HK$62,991 HKD |
| 40 | 2.20ct HEART I VS2 | natural | 100 | HK$125,474 HKD |
| 41 | 2.20ct ROUND H VS1 | natural | 100 | HK$176,682 HKD |
| 42 | 2.12ct ROUND E VVS1 | natural | 100 | HK$222,663 HKD |
| 43 | 2.08ct ASSCHER F VS2 | natural | 100 | HK$127,552 HKD |
| 44 | 2.05ct ROUND H VS1 | natural | 100 | HK$83,007 HKD |
| 45 | 2.04ct ROUND I SI1 | natural | 100 | HK$102,928 HKD |
| 46 | 2.03ct ROUND H VS1 | natural | 100 | HK$109,376 HKD |
| 47 | 2.03ct EMERALD D VVS1 | natural | 100 | HK$277,612 HKD |
| 48 | 2.02ct OVAL I SI1 | natural | 100 | HK$84,959 HKD |
| 49 | 2.02ct ASSCHER J VVS1 | natural | 100 | HK$100,592 HKD |
| 50 | 2.02ct CUSHION F SI1 | natural | 100 | HK$132,768 HKD |
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