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 31 July 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	1.64ct ROUND FANCY I2	natural	99	HK$32,901 HKD
2	0.45ct ROUND FANCY I1	natural	99	HK$7,349 HKD
3	5.59ct ROUND FANCY SI2	natural	98	HK$317,340 HKD
4	5.50ct ROUND FANCY SI2	natural	98	HK$364,269 HKD
5	4.00ct ROUND FANCY I2	natural	98	HK$150,446 HKD
6	3.53ct PEAR FANCY SI2	natural	98	HK$98,386 HKD
7	2.15ct ROUND FANCY VVS1	natural	98	HK$585,746 HKD
8	1.51ct RADIANT FANCY VVS1	natural	98	HK$78,885 HKD
9	1.50ct PEAR FANCY VVS2	natural	98	HK$107,999 HKD
10	1.32ct ROUND FANCY SI1	natural	98	HK$47,786 HKD
11	1.31ct RADIANT FANCY IF	natural	98	HK$65,480 HKD
12	1.11ct OVAL FANCY VVS1	natural	98	HK$92,177 HKD
13	1.10ct RADIANT FANCY VVS1	natural	98	HK$37,892 HKD
14	1.02ct ROUND FANCY SI2	natural	98	HK$12,079 HKD
15	1.01ct PEAR FANCY VVS2	natural	98	HK$52,000 HKD
16	1.00ct HEART FANCY VS2	natural	98	HK$18,731 HKD
17	0.70ct OVAL FANCY VS1	natural	98	HK$13,231 HKD
18	0.40ct OVAL FANCY I1	natural	98	HK$8,902 HKD
19	0.38ct ROUND N SI1	natural	98	HK$2,771 HKD
20	0.36ct ROUND FANCY SI2	natural	98	HK$8,012 HKD
21	0.34ct ROUND FANCY VVS2	natural	98	HK$7,566 HKD
22	0.34ct OVAL FANCY VS2	natural	98	HK$18,957 HKD
23	0.31ct ROUND FANCY SI2	natural	98	HK$23,330 HKD
24	0.27ct ROUND FANCY I1	natural	98	HK$16,133 HKD
25	1.33ct ROUND FANCY VS2	natural	97	HK$54,111 HKD
26	10.96ct PEAR FAINT PINK IF	natural	96	HK$9,129,447 HKD
27	5.53ct RADIANT FANCY VS2	natural	96	HK$683,381 HKD
28	3.49ct ROUND D FL	lab grown	96	HK$105,977 HKD
29	3.08ct ROUND K VVS1	natural	96	HK$163,348 HKD
30	2.50ct ROUND L VS1	natural	96	HK$98,785 HKD
31	2.23ct ROUND K IF	natural	96	HK$117,546 HKD
32	2.09ct PEAR FANCY VS1	natural	96	HK$59,493 HKD
33	2.07ct CUSHION FANCY SI1	natural	96	HK$200,938 HKD
34	1.80ct OVAL L SI2	natural	96	HK$43,815 HKD
35	1.72ct OVAL K SI2	natural	96	HK$47,631 HKD
36	1.71ct ASSCHER K VS2	natural	96	HK$33,253 HKD
37	1.53ct ROUND L SI1	natural	96	HK$23,738 HKD
38	1.51ct ROUND L VS1	natural	96	HK$20,315 HKD
39	1.51ct ROUND L SI1	natural	96	HK$37,677 HKD
40	1.50ct OVAL L SI2	natural	96	HK$32,646 HKD
41	1.50ct ROUND L SI2	natural	96	HK$34,685 HKD
42	1.50ct PEAR FANCY VS1	natural	96	HK$35,913 HKD
43	1.01ct CUSHION K VVS2	natural	96	HK$10,294 HKD
44	1.01ct HEART K VS2	natural	96	HK$11,208 HKD
45	1.01ct PEAR FANCY SI2	natural	96	HK$12,115 HKD
46	1.01ct PEAR FANCY SI1	natural	96	HK$22,646 HKD
47	1.01ct CUSHION FANCY SI2	natural	96	HK$37,600 HKD
48	0.90ct ROUND K VS1	natural	96	HK$12,646 HKD
49	0.79ct OVAL FANCY VS1	natural	96	HK$100,176 HKD
50	0.70ct HEART FANCY SI2	natural	96	HK$9,946 HKD

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