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.

#DiamondOriginScoreLowest Price (HKD)
16.06ct OVAL D VVS2lab grown100HK$113,962 HKD
25.12ct OVAL E VVS2lab grown100HK$79,755 HKD
35.11ct HEART D IFlab grown100HK$105,085 HKD
45.06ct OVAL E IFlab grown100HK$104,054 HKD
55.04ct HEART E IFlab grown100HK$87,362 HKD
64.71ct HEART D IFlab grown100HK$70,485 HKD
74.58ct ASSCHER E VVS2lab grown100HK$64,808 HKD
84.56ct OVAL D VVS1lab grown100HK$90,308 HKD
94.24ct ROUND D VVS1lab grown100HK$36,169 HKD
104.22ct ROUND D VVS1lab grown100HK$36,000 HKD
114.21ct OVAL D VVS1lab grown100HK$51,623 HKD
124.16ct HEART D IFlab grown100HK$64,600 HKD
134.09ct OVAL F VVS2lab grown100HK$43,385 HKD
144.07ct OVAL D VS1lab grown100HK$68,392 HKD
153.96ct OVAL D FLlab grown100HK$111,592 HKD
163.91ct OVAL E VS1lab grown100HK$13,585 HKD
173.79ct ASSCHER D FLlab grown100HK$109,669 HKD
183.67ct PRINCESS D VVS1lab grown100HK$32,015 HKD
193.62ct ASSCHER G VVS2lab grown100HK$5,308 HKD
203.60ct OVAL E VVS1lab grown100HK$60,615 HKD
213.57ct HEART D IFlab grown100HK$41,662 HKD
223.55ct ASSCHER F VS1lab grown100HK$43,115 HKD
233.52ct OVAL E VS2lab grown100HK$13,931 HKD
243.51ct CUSHION E VS2lab grown100HK$13,615 HKD
253.42ct ROUND E VVS1lab grown100HK$22,469 HKD
263.37ct PRINCESS E VS2lab grown100HK$39,000 HKD
273.37ct OVAL E VVS2lab grown100HK$49,231 HKD
283.28ct ROUND F VS1lab grown100HK$10,092 HKD
293.28ct PRINCESS E VVS2lab grown100HK$47,731 HKD
303.26ct OVAL E IFlab grown100HK$34,777 HKD
313.17ct ROUND D VVS1lab grown100HK$16,169 HKD
323.09ct CUSHION D VVS2lab grown100HK$28,154 HKD
333.07ct OVAL E VS2lab grown100HK$9,538 HKD
343.06ct ROUND E VS1lab grown100HK$111,354 HKD
353.06ct ROUND D VS2lab grown100HK$149,177 HKD
363.05ct OVAL E VS2lab grown100HK$6,569 HKD
373.04ct ROUND D VVS1lab grown100HK$20,854 HKD
383.04ct ROUND D VS2lab grown100HK$148,208 HKD
393.03ct ASSCHER E VVS1lab grown100HK$25,515 HKD
403.03ct OVAL D VVS1lab grown100HK$27,015 HKD
413.03ct ROUND E VS2lab grown100HK$132,738 HKD
423.02ct OVAL E VS2lab grown100HK$4,785 HKD
433.02ct EMERALD D VS1lab grown100HK$6,700 HKD
443.02ct OVAL D VVS1lab grown100HK$26,923 HKD
453.02ct HEART D IFlab grown100HK$35,623 HKD
463.01ct ROUND F VS1lab grown100HK$9,308 HKD
473.01ct OVAL D VS1lab grown100HK$18,454 HKD
483.01ct ROUND D IFlab grown100HK$64,538 HKD
493.00ct ROUND D VVS2lab grown100HK$45,500 HKD
502.94ct OVAL E VS1lab grown100HK$9,800 HKD
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