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	5.12ct OVAL E VVS2	lab grown	100	HK$81,014 HKD
2	5.11ct HEART D IF	lab grown	100	HK$107,149 HKD
3	5.06ct OVAL E IF	lab grown	100	HK$106,098 HKD
4	5.04ct HEART E IF	lab grown	100	HK$89,077 HKD
5	4.71ct HEART D IF	lab grown	100	HK$71,869 HKD
6	4.56ct OVAL D VVS1	lab grown	100	HK$92,082 HKD
7	4.24ct ROUND D VVS1	lab grown	100	HK$36,731 HKD
8	4.22ct ROUND D VVS1	lab grown	100	HK$33,099 HKD
9	4.21ct OVAL D VVS1	lab grown	100	HK$52,637 HKD
10	4.16ct HEART D IF	lab grown	100	HK$65,869 HKD
11	3.96ct OVAL D FL	lab grown	100	HK$106,584 HKD
12	3.91ct OVAL E VS1	lab grown	100	HK$10,361 HKD
13	3.79ct ASSCHER D FL	lab grown	100	HK$101,776 HKD
14	3.67ct PRINCESS D VVS1	lab grown	100	HK$32,644 HKD
15	3.62ct ASSCHER G VVS2	lab grown	100	HK$17,444 HKD
16	3.60ct OVAL E VVS1	lab grown	100	HK$61,806 HKD
17	3.57ct HEART D IF	lab grown	100	HK$42,480 HKD
18	3.52ct OVAL E VS2	lab grown	100	HK$52,159 HKD
19	3.51ct MARQUISE E VS2	lab grown	100	HK$13,883 HKD
20	3.42ct ROUND E VVS1	lab grown	100	HK$20,354 HKD
21	3.28ct ROUND F VS1	lab grown	100	HK$5,577 HKD
22	3.28ct PRINCESS E VVS2	lab grown	100	HK$58,433 HKD
23	3.26ct OVAL E IF	lab grown	100	HK$35,460 HKD
24	3.17ct ROUND D VVS1	lab grown	100	HK$7,773 HKD
25	3.09ct CUSHION D VVS2	lab grown	100	HK$22,448 HKD
26	3.08ct OVAL G VS1	lab grown	100	HK$17,201 HKD
27	3.07ct OVAL E VS2	lab grown	100	HK$9,734 HKD
28	3.07ct OVAL G VS1	lab grown	100	HK$16,471 HKD
29	3.05ct OVAL E VS2	lab grown	100	HK$9,702 HKD
30	3.04ct ROUND D VVS1	lab grown	100	HK$19,914 HKD
31	3.03ct OVAL D VVS1	lab grown	100	HK$27,546 HKD
32	3.02ct EMERALD D VS1	lab grown	100	HK$6,832 HKD
33	3.02ct OVAL E VS2	lab grown	100	HK$16,252 HKD
34	3.02ct OVAL D VVS1	lab grown	100	HK$27,452 HKD
35	3.02ct HEART D IF	lab grown	100	HK$36,323 HKD
36	3.01ct ROUND F VS1	lab grown	100	HK$5,122 HKD
37	3.01ct OVAL D VS1	lab grown	100	HK$41,178 HKD
38	3.01ct ROUND D IF	lab grown	100	HK$68,449 HKD
39	2.94ct OVAL E VS1	lab grown	100	HK$16,001 HKD
40	2.92ct OVAL E VS1	lab grown	100	HK$15,899 HKD
41	2.90ct HEART D VVS1	lab grown	100	HK$16,754 HKD
42	2.84ct RADIANT E VS1	lab grown	100	HK$7,451 HKD
43	2.80ct HEART D IF	lab grown	100	HK$29,044 HKD
44	2.71ct OVAL F VS2	lab grown	100	HK$24,785 HKD
45	2.70ct OVAL E VS2	lab grown	100	HK$15,569 HKD
46	2.67ct ROUND D VVS1	lab grown	100	HK$16,895 HKD
47	2.64ct OVAL D VVS1	lab grown	100	HK$39,531 HKD
48	2.61ct OVAL D VS2	lab grown	100	HK$10,691 HKD
49	2.58ct OVAL F VS1	lab grown	100	HK$5,647 HKD
50	2.58ct RADIANT F VS1	lab grown	100	HK$14,008 HKD

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