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$970,276 HKD |
| 2 | 8.03ct OVAL G VS2 | natural | 100 | HK$3,074,783 HKD |
| 3 | 7.03ct CUSHION F VS2 | natural | 100 | HK$2,338,572 HKD |
| 4 | 7.01ct PEAR I SI2 | natural | 100 | HK$702,141 HKD |
| 5 | 5.30ct CUSHION D FL | natural | 100 | HK$1,498,297 HKD |
| 6 | 5.02ct OVAL H SI1 | natural | 100 | HK$856,810 HKD |
| 7 | 5.01ct ROUND H SI2 | natural | 100 | HK$361,220 HKD |
| 8 | 5.01ct CUSHION G SI1 | natural | 100 | HK$511,060 HKD |
| 9 | 4.50ct ROUND H VVS1 | natural | 100 | HK$297,429 HKD |
| 10 | 4.07ct OVAL H VVS2 | natural | 100 | HK$554,336 HKD |
| 11 | 4.03ct PRINCESS I VS2 | natural | 100 | HK$393,421 HKD |
| 12 | 4.03ct HEART E VS2 | natural | 100 | HK$629,315 HKD |
| 13 | 4.02ct HEART H SI1 | natural | 100 | HK$312,610 HKD |
| 14 | 4.01ct ROUND J SI1 | natural | 100 | HK$234,601 HKD |
| 15 | 4.01ct ROUND H SI2 | natural | 100 | HK$263,303 HKD |
| 16 | 3.52ct OVAL J SI1 | natural | 100 | HK$236,413 HKD |
| 17 | 3.33ct ASSCHER L VS1 | natural | 100 | HK$177,405 HKD |
| 18 | 3.10ct HEART I SI2 | natural | 100 | HK$99,141 HKD |
| 19 | 3.05ct OVAL K SI1 | natural | 100 | HK$137,893 HKD |
| 20 | 3.04ct HEART I SI2 | natural | 100 | HK$88,474 HKD |
| 21 | 3.04ct OVAL J SI2 | natural | 100 | HK$126,428 HKD |
| 22 | 3.02ct RADIANT H SI2 | natural | 100 | HK$232,487 HKD |
| 23 | 3.02ct ROUND F VS1 | natural | 100 | HK$564,334 HKD |
| 24 | 3.01ct CUSHION J VS2 | natural | 100 | HK$81,885 HKD |
| 25 | 3.01ct OVAL I SI2 | natural | 100 | HK$110,670 HKD |
| 26 | 3.01ct ROUND H SI2 | natural | 100 | HK$119,816 HKD |
| 27 | 3.01ct ROUND F SI2 | natural | 100 | HK$141,083 HKD |
| 28 | 3.01ct OVAL J SI2 | natural | 100 | HK$164,476 HKD |
| 29 | 3.01ct OVAL K SI1 | natural | 100 | HK$172,807 HKD |
| 30 | 3.01ct OVAL F SI1 | natural | 100 | HK$308,897 HKD |
| 31 | 3.01ct OVAL G VVS2 | natural | 100 | HK$324,513 HKD |
| 32 | 3.01ct ROUND G VS2 | natural | 100 | HK$407,896 HKD |
| 33 | 2.68ct CUSHION D VS1 | natural | 100 | HK$155,356 HKD |
| 34 | 2.53ct ROUND I SI2 | natural | 100 | HK$127,355 HKD |
| 35 | 2.52ct OVAL D VS1 | natural | 100 | HK$362,266 HKD |
| 36 | 2.51ct OVAL D VVS1 | natural | 100 | HK$278,947 HKD |
| 37 | 2.50ct ROUND H VVS2 | natural | 100 | HK$150,851 HKD |
| 38 | 2.42ct ROUND I VVS1 | natural | 100 | HK$108,866 HKD |
| 39 | 2.34ct ROUND G SI2 | natural | 100 | HK$62,983 HKD |
| 40 | 2.20ct HEART I VS2 | natural | 100 | HK$125,457 HKD |
| 41 | 2.20ct ROUND H VS1 | natural | 100 | HK$176,657 HKD |
| 42 | 2.12ct ROUND E VVS1 | natural | 100 | HK$222,632 HKD |
| 43 | 2.08ct ASSCHER F VS2 | natural | 100 | HK$127,534 HKD |
| 44 | 2.05ct ROUND H VS1 | natural | 100 | HK$82,995 HKD |
| 45 | 2.04ct ROUND I SI1 | natural | 100 | HK$102,913 HKD |
| 46 | 2.03ct ROUND H VS1 | natural | 100 | HK$109,361 HKD |
| 47 | 2.03ct EMERALD D VVS1 | natural | 100 | HK$277,573 HKD |
| 48 | 2.02ct OVAL I SI1 | natural | 100 | HK$84,947 HKD |
| 49 | 2.02ct ASSCHER J VVS1 | natural | 100 | HK$100,577 HKD |
| 50 | 2.02ct CUSHION F SI1 | natural | 100 | HK$132,750 HKD |
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