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	1.64ct ROUND FANCY I2	natural	99	HK$34,309 HKD
2	0.45ct ROUND FANCY I1	natural	99	HK$6,763 HKD
3	5.59ct ROUND FANCY SI2	natural	98	HK$382,616 HKD
4	5.50ct ROUND FANCY SI2	natural	98	HK$438,956 HKD
5	4.00ct ROUND FANCY I2	natural	98	HK$176,562 HKD
6	3.53ct PEAR FANCY SI2	natural	98	HK$92,535 HKD
7	2.15ct ROUND FANCY VVS1	natural	98	HK$597,251 HKD
8	1.51ct RADIANT FANCY VVS1	natural	98	HK$91,052 HKD
9	1.50ct PEAR FANCY VVS2	natural	98	HK$99,471 HKD
10	1.32ct ROUND FANCY SI1	natural	98	HK$44,810 HKD
11	1.31ct RADIANT FANCY IF	natural	98	HK$61,264 HKD
12	1.11ct OVAL FANCY VVS1	natural	98	HK$90,288 HKD
13	1.10ct RADIANT FANCY VVS1	natural	98	HK$38,800 HKD
14	1.02ct ROUND FANCY SI2	natural	98	HK$11,266 HKD
15	1.01ct PEAR FANCY VVS2	natural	98	HK$53,021 HKD
16	1.00ct HEART FANCY VS2	natural	98	HK$19,099 HKD
17	0.70ct OVAL FANCY VS1	natural	98	HK$5,813 HKD
18	0.50ct ROUND N SI2	natural	98	HK$6,005 HKD
19	0.40ct OVAL FANCY I1	natural	98	HK$10,097 HKD
20	0.36ct ROUND FANCY SI2	natural	98	HK$9,043 HKD
21	0.34ct ROUND FANCY VVS2	natural	98	HK$8,672 HKD
22	0.31ct ROUND FANCY SI2	natural	98	HK$21,832 HKD
23	0.30ct ROUND FANCY VS2	natural	98	HK$4,509 HKD
24	0.27ct ROUND FANCY I1	natural	98	HK$15,096 HKD
25	1.33ct ROUND FANCY VS2	natural	97	HK$50,245 HKD
26	10.96ct PEAR FAINT PINK IF	natural	96	HK$9,497,887 HKD
27	5.53ct RADIANT FANCY VS2	natural	96	HK$634,658 HKD
28	3.49ct ROUND D FL	lab grown	96	HK$108,059 HKD
29	3.08ct ROUND K VVS1	natural	96	HK$168,162 HKD
30	2.50ct ROUND L VS1	natural	96	HK$95,642 HKD
31	2.23ct ROUND K IF	natural	96	HK$137,465 HKD
32	2.09ct PEAR FANCY VS1	natural	96	HK$55,952 HKD
33	2.07ct CUSHION FANCY SI1	natural	96	HK$205,750 HKD
34	1.80ct OVAL L SI2	natural	96	HK$42,119 HKD
35	1.72ct OVAL K SI2	natural	96	HK$45,774 HKD
36	1.53ct ROUND L SI1	natural	96	HK$22,785 HKD
37	1.51ct ROUND L VS1	natural	96	HK$20,652 HKD
38	1.51ct ROUND L SI1	natural	96	HK$40,107 HKD
39	1.50ct PEAR FANCY VS1	natural	96	HK$33,354 HKD
40	1.50ct OVAL L SI2	natural	96	HK$38,051 HKD
41	1.50ct ROUND L SI2	natural	96	HK$39,548 HKD
42	1.01ct PEAR FANCY SI2	natural	96	HK$12,406 HKD
43	1.01ct HEART K VS2	natural	96	HK$13,968 HKD
44	1.01ct PEAR FANCY SI1	natural	96	HK$23,188 HKD
45	1.01ct RADIANT FANCY LIGHT YELLOW VS1	natural	96	HK$28,542 HKD
46	1.01ct CUSHION FANCY SI2	natural	96	HK$38,501 HKD
47	0.90ct ROUND K VS1	natural	96	HK$22,503 HKD
48	0.81ct ROUND GREY VS2	natural	96	HK$8,722 HKD
49	0.79ct OVAL FANCY VS1	natural	96	HK$92,265 HKD
50	0.70ct HEART FANCY SI2	natural	96	HK$10,184 HKD

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