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Round|Natural|GIA

0.66ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6501281572

Certificate GIA 6501281572

Diamond specifications and retailer prices

From HK$4,118 HKD
As of November 1, 2026
Save HK$11,057 HKD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$15,174 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 6501281572. Listed at 14 retailers as of October 30, 2026, with prices from HK$4,118 to HK$15,174, a HK$11,057 spread on the same certified stone. NZ Jewellers lists it at HK$15,174. 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
FluorescenceStrong
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6501281572
Dimensions5.58 × 5.56 × 3.46 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.58 mm5.56 mm0.66 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6501281572
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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$15,174 HKD|Low: HK$4,118 HKD|High: HK$15,174 HKD|Avg: HK$6,740 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 4HK$4,118 HKD
Retailer 10HK$4,464 HKD
Retailer 9HK$4,904 HKD
Retailer 11HK$5,210 HKD
Retailer 14HK$5,210 HKD
Retailer 6HK$5,341 HKD
Retailer 3HK$5,586 HKD
Retailer 13HK$5,586 HKD
Retailer 7HK$5,922 HKD
Retailer 5HK$6,065 HKD
Retailer 2HK$6,492 HKD
Retailer 12HK$6,963 HKD
Retailer 8HK$11,180 HKD
NZ JewellersHK$15,174 HKD

40 data points across 14 retailers

14 retailersHK$4,118 HKD to HK$15,174 HKD

A
Cheapest Retailer
-
HK$4,118 HKD
A
Retailer 2
-
HK$4,464 HKD
$569 USD
View
Final sale: no returns
Retailer 3
-
HK$4,841 HKD
$617 USD
View
Price last confirmed 49 days ago
A
Retailer 4
-
HK$4,904 HKD
$625 USD
View
Retailer 5
-
HK$5,075 HKD
SGD 874 SGD
View
Price last confirmed 7 days ago
A
Retailer 6
-
HK$5,210 HKD
$664 USD
View
A
Retailer 7
-
HK$5,210 HKD
$664 USD
View
Retailer 8
-
HK$5,586 HKD
$712 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
HK$5,586 HKD
$712 USD
View
A
Retailer 10
-
HK$5,922 HKD
£594 GBP
View
A
Retailer 11
-
HK$6,492 HKD
€788 EUR
View
B+
Retailer 12
-
HK$6,963 HKD
$887 USD
View
B
Retailer 13
-
HK$11,180 HKD
£1,122 GBP
View
Most Expensive
B
NZ Jewellers
108d9daa-d786-4562-9ea8-ae75631ea637 · Oct 30
HK$15,174 HKD
$1,934 USD
View
13 more retailers have this diamond
Prices start from HK$4,118 HKDSave up to HK$11,057 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$4,118 HKD