Round|Natural|GIA

1.64ct E IF Round Natural Diamond

EX • E/IF • GIA 6171266239

Certificate GIA 6171266239

Diamond specifications and retailer prices

From HK$167,207 HKD
$21,310 USD
As of October 25, 2026
Save HK$249,330 HKD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$416,537 HKD at Diamond Quarter · As of October 28, 2026
View at Diamond Quarter

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6171266239. Listed at 7 retailers as of October 25, 2026, with prices from HK$167,207 to HK$416,537, a HK$249,330 spread on the same certified stone. Diamond Quarter lists it at HK$416,537. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6171266239
Dimensions7.59 × 7.56 × 4.63 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.59 mm7.56 mm1.64 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6171266239
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.1%

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: Oct 25
Current: HK$192,826 HKD|Low: HK$167,207 HKD|High: HK$303,083 HKD|Avg: HK$209,502 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4HK$167,207 HKD
Retailer 6HK$171,828 HKD
Retailer 1HK$192,826 HKD
Retailer 5HK$196,350 HKD
Retailer 3HK$231,393 HKD
Retailer 2HK$301,080 HKD

41 data points across 6 retailers

7 retailersHK$167,207 HKD to HK$416,537 HKD

A
Cheapest Retailer
-
HK$167,207 HKD
$21,310 USD
A
Retailer 2
-
HK$192,826 HKD
£19,350 GBP
View
B+
Retailer 3
-
HK$196,350 HKD
A$38,499 AUD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
HK$213,950 HKD
$27,267 USD
View
B+
Retailer 5
-
HK$231,393 HKD
€28,086 EUR
View
B
Retailer 6
-
HK$301,080 HKD
£30,214 GBP
View
Most Expensive
B
Diamond Quarter
1.64IFE6139013CN · Oct 28
HK$416,537 HKD
£41,800 GBP
View
6 more retailers have this diamond
Prices start from HK$167,207 HKDSave up to HK$249,330 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
1.64ct Round
HK$167,207 HKD