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0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6402283719

Certificate GIA 6402283719

Diamond specifications and retailer prices

From HK$3,615 HKD
As of November 1, 2026
Save HK$8,954 HKD (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$12,569 HKD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 0.66ct natural round diamond

This 0.66ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6402283719. Listed at 6 retailers as of November 1, 2026, with prices from HK$3,615 to HK$12,569, a HK$8,954 spread on the same certified stone. Diamond Quarter lists it at HK$12,569. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.66
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6402283719
Dimensions5.54 × 5.52 × 3.46 mm
L/W Ratio1.00
Top View
5.54 mm5.52 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6402283719
Side View
Table 61.0%Crown 34.5°Girdle: MED-MEDPavilion 41.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$6,704 HKD|Low: HK$3,226 HKD|High: HK$7,234 HKD|Avg: HK$5,321 HKD|-7.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 5HK$3,226 HKD
Retailer 4HK$3,615 HKD
Retailer 8HK$4,784 HKD
Retailer 6HK$5,430 HKD
Retailer 3HK$5,524 HKD
Retailer 2HK$6,105 HKD
Retailer 1HK$6,704 HKD
Retailer 7HK$6,983 HKD

11 data points across 8 retailers

6 retailersHK$3,615 HKD to HK$12,569 HKD

A
Cheapest Retailer
-
HK$3,615 HKD
A
Retailer 2
-
HK$4,442 HKD
A$871 AUD
View
A
Retailer 3
-
HK$5,524 HKD
$704 USD
View
A
Retailer 4
-
HK$6,105 HKD
€741 EUR
View
A
Retailer 5
-
HK$6,704 HKD
£673 GBP
View
Most Expensive
B
Diamond Quarter
0.66SI2H64193B4AN · Nov 2
HK$12,569 HKD
£1,261 GBP
View
5 more retailers have this diamond
Prices start from HK$3,615 HKDSave up to HK$8,954 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.66ct Round
HK$3,615 HKD