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Round|Natural|GIA

1.64ct E IF Round Natural Diamond

EX • E/IF • GIA 6171266239

Certificate GIA 6171266239

Diamond specifications and retailer prices

From $27,313 SGD
$21,310 USD
As of October 25, 2026
Save $40,728 SGD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $68,041 SGD 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 $27,313 to $68,041, a $40,728 spread on the same certified stone. Diamond Quarter lists it at $68,041. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $31,498 SGD|Low: $27,313 SGD|High: $49,508 SGD|Avg: $34,222 SGD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$27,313 SGD
Retailer 6$28,068 SGD
Retailer 1$31,498 SGD
Retailer 5$32,074 SGD
Retailer 3$37,798 SGD
Retailer 2$49,181 SGD

41 data points across 6 retailers

7 retailers$27,313 SGD to $68,041 SGD

A
Cheapest Retailer
-
$27,313 SGD
$21,310 USD
A
Retailer 2
-
$31,498 SGD
£19,350 GBP
View
B+
Retailer 3
-
$32,074 SGD
A$38,499 AUD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$34,948 SGD
$27,267 USD
View
B+
Retailer 5
-
$37,798 SGD
€28,086 EUR
View
B
Retailer 6
-
$49,181 SGD
£30,214 GBP
View
Most Expensive
B
Diamond Quarter
1.64IFE6139013CN · Oct 28
$68,041 SGD
£41,800 GBP
View
6 more retailers have this diamond
Prices start from $27,313 SGDSave up to $40,728 SGD

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
$27,313 SGD