Top 50 Diamonds by Certification Score

Ranked by certificate rigour. GIA and AGS stones with complete grading, clear symmetry, and verified provenance come out on top.

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	0.53ct PEAR D VVS2	natural	100	HK$8,000 HKD
2	0.70ct ROUND G VS2	natural	100	HK$10,619 HKD
3	0.70ct PEAR H VVS2	natural	100	HK$12,462 HKD
4	0.81ct ROUND G VS2	natural	100	HK$16,657 HKD
5	0.72ct PEAR E VVS1	natural	100	HK$18,923 HKD
6	1.01ct ROUND I SI1	natural	100	HK$21,922 HKD
7	1.01ct ROUND H SI1	natural	100	HK$23,544 HKD
8	1.00ct ROUND H SI1	natural	100	HK$23,769 HKD
9	1.01ct ROUND H SI1	natural	100	HK$24,003 HKD
10	1.00ct ROUND H VVS1	natural	100	HK$25,400 HKD
11	0.90ct ROUND G VVS2	natural	100	HK$28,057 HKD
12	0.90ct ROUND G VVS2	natural	100	HK$28,057 HKD
13	1.09ct ROUND I VS2	natural	100	HK$28,409 HKD
14	1.01ct ROUND G VS2	natural	100	HK$34,016 HKD
15	1.05ct ROUND G VS1	natural	100	HK$38,608 HKD
16	1.70ct OVAL H SI2	natural	100	HK$38,846 HKD
17	1.30ct ROUND I VVS2	natural	100	HK$43,297 HKD
18	1.00ct ROUND G VVS2	natural	100	HK$44,548 HKD
19	1.01ct OVAL D VVS2	natural	100	HK$44,988 HKD
20	1.30ct ROUND I VVS2	natural	100	HK$46,775 HKD
21	1.03ct ROUND E VVS2	natural	100	HK$61,869 HKD
22	2.01ct PEAR H SI2	natural	100	HK$64,615 HKD
23	1.56ct ROUND I IF	natural	100	HK$83,654 HKD
24	2.02ct ROUND E VS1	natural	100	HK$200,065 HKD
25	0.75ct ROUND K VS1	natural	99	HK$7,161 HKD
26	0.90ct ROUND J VS2	natural	99	HK$10,580 HKD
27	0.80ct ROUND J VVS2	natural	99	HK$11,606 HKD
28	0.80ct ROUND J VVS2	natural	99	HK$11,938 HKD
29	0.70ct ROUND E SI1	natural	99	HK$12,045 HKD
30	0.70ct ROUND E SI1	natural	99	HK$12,163 HKD
31	0.70ct ROUND D SI1	natural	99	HK$12,280 HKD
32	0.71ct ROUND E SI1	natural	99	HK$12,339 HKD
33	0.71ct ROUND E SI1	natural	99	HK$12,339 HKD
34	0.65ct ROUND E VVS2	natural	99	HK$12,544 HKD
35	0.81ct ROUND G VS2	natural	99	HK$12,593 HKD
36	0.71ct ROUND G VS1	natural	99	HK$14,126 HKD
37	0.74ct ROUND G VS1	natural	99	HK$14,136 HKD
38	1.02ct ROUND K SI1	natural	99	HK$14,478 HKD
39	1.00ct ROUND J SI1	natural	99	HK$14,517 HKD
40	0.91ct ROUND I VS1	natural	99	HK$14,634 HKD
41	0.70ct ROUND D VS2	natural	99	HK$14,810 HKD
42	0.70ct ROUND D VS2	natural	99	HK$14,810 HKD
43	1.01ct ROUND K VS2	natural	99	HK$15,474 HKD
44	0.91ct ROUND H VS2	natural	99	HK$15,895 HKD
45	1.05ct ROUND L VVS2	natural	99	HK$15,982 HKD
46	0.90ct ROUND H SI1	natural	99	HK$16,705 HKD
47	0.74ct ROUND F VVS2	natural	99	HK$17,350 HKD
48	1.01ct ROUND K VS1	natural	99	HK$18,376 HKD
49	0.80ct ROUND G VVS2	natural	99	HK$18,767 HKD
50	1.06ct ROUND K VVS2	natural	99	HK$20,594 HKD

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