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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 1 November 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.

#DiamondOriginGradeLowest Price (HKD)
130.13ct RADIANT FANCY SI2naturalA+HK$3,073,082 HKD
222.79ct EMERALD FANCY LIGHT BROWNISH YELLOW VS2naturalA+HK$2,226,639 HKD
322.02ct CUSHION FANCY VS2naturalA+HK$3,237,701 HKD
420.05ct PEAR FANCY YELLOW IFnaturalA+HK$4,699,865 HKD
517.14ct RADIANT FANCY YELLOW VS2naturalA+HK$2,116,494 HKD
615.59ct CUSHION FANCY VS1naturalA+HK$1,829,162 HKD
715.16ct CUSHION FANCY YELLOW VS2naturalA+HK$1,362,164 HKD
815.04ct OVAL FANCY SI1naturalA+HK$1,566,818 HKD
914.58ct CUSHION FANCY YELLOW VS2naturalA+HK$1,286,327 HKD
1014.51ct CUSHION FANCY VS1naturalA+HK$2,796,851 HKD
1114.07ct CUSHION FANCY VS2naturalA+HK$3,043,700 HKD
1213.77ct CUSHION FANCY VVS2naturalA+HK$2,046,233 HKD
1312.53ct RADIANT FANCY YELLOW VS1naturalA+HK$2,317,592 HKD
1412.50ct RADIANT FANCY VS2naturalA+HK$2,140,803 HKD
1512.17ct CUSHION FANCY VS1naturalA+HK$904,284 HKD
1612.10ct RADIANT FANCY VS2naturalA+HK$2,072,335 HKD
1712.04ct CUSHION FANCY YELLOW VS2naturalA+HK$695,142 HKD
1812.02ct CUSHION FANCY VVS1naturalA+HK$1,662,673 HKD
1911.32ct RADIANT FANCY YELLOW VS1naturalA+HK$1,102,979 HKD
2011.13ct CUSHION FANCY VVS2naturalA+HK$1,486,792 HKD
2110.87ct RADIANT FANCY VS1naturalA+HK$689,107 HKD
2210.40ct PEAR FANCY VVS2naturalA+HK$1,516,629 HKD
2310.16ct CUSHION FANCY IFnaturalA+HK$1,883,250 HKD
2410.16ct RADIANT FANCY YELLOW VS1naturalA+HK$4,097,715 HKD
2510.12ct CUSHION FANCY VS2naturalA+HK$677,131 HKD
2610.06ct RADIANT FANCY VS1naturalA+HK$1,930,078 HKD
2710.06ct CUSHION FANCY VVS2naturalA+HK$3,943,729 HKD
2810.05ct CUSHION FANCY VS2naturalA+HK$787,432 HKD
2910.03ct CUSHION FANCY VS1naturalA+HK$890,200 HKD
3010.02ct PEAR FANCY LIGHT YELLOW VS2naturalA+HK$1,179,005 HKD
3110.02ct CUSHION FANCY VS2naturalA+HK$1,587,672 HKD
3210.02ct PEAR FANCY SI1naturalA+HK$3,012,046 HKD
3310.01ct RADIANT FANCY SI2naturalA+HK$501,230 HKD
3410.01ct CUSHION FANCY VS1naturalA+HK$974,897 HKD
359.56ct CUSHION FANCY VS2naturalA+HK$1,662,438 HKD
369.08ct OVAL FANCY LIGHT YELLOW VS2naturalA+HK$795,789 HKD
378.88ct CUSHION FANCY VS2naturalA+HK$890,382 HKD
388.88ct OVAL K FAINT BROWN VVS2naturalA+HK$1,453,370 HKD
398.56ct RADIANT FANCY PINK SI1naturalA+HK$6,108,672 HKD
408.39ct CUSHION FANCY VS1naturalA+HK$933,611 HKD
418.15ct CUSHION FANCY YELLOW VS1naturalA+HK$1,189,847 HKD
428.05ct RADIANT FANCY YELLOW VS1naturalA+HK$1,111,963 HKD
438.03ct OVAL FANCY VS1naturalA+HK$777,089 HKD
448.02ct CUSHION FANCY VS1naturalA+HK$489,419 HKD
458.02ct CUSHION FANCY INTENSE YELLOW VS2naturalA+HK$1,133,726 HKD
468.02ct CUSHION FANCY VS2naturalA+HK$1,349,633 HKD
478.02ct CUSHION FANCY VS2naturalA+HK$2,609,471 HKD
488.01ct CUSHION FANCY YELLOW VVS1naturalA+HK$746,409 HKD
498.01ct RADIANT FANCY VS2naturalA+HK$926,658 HKD
508.01ct ROUND FANCY GRAY SI2naturalA+HK$1,415,945 HKD
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