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1.64ct E IF Round Natural Diamond

EX • E/IF • GIA 5222650249

Shape and cutting style on the report: Round brilliant

Certificate GIA 5222650249

Diamond specifications and retailer prices

From $37,823 AUD
$26,600 USD
As of October 28, 2026
Save $20,605 AUD (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $58,427 AUD 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 5222650249. Listed at 4 retailers as of October 28, 2026, with prices from $37,823 to $58,427, a $20,605 spread on the same certified stone. Diamond Quarter lists it at $58,427. 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
FluorescenceFaint
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5222650249
Dimensions7.77 × 7.80 × 4.55 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.77 mm7.80 mm1.64 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5222650249
Side View
Table 59.0%Crown 32°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 58.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $35,353 AUD|Low: $24,918 AUD|High: $60,408 AUD|Avg: $37,065 AUD|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 1, 2026
Retailer 3$24,918 AUD
Retailer 1$35,353 AUD
Retailer 2$35,914 AUD
Retailer 9$37,823 AUD
Retailer 10$37,823 AUD
Retailer 7$38,117 AUD
Retailer 5$38,879 AUD
Retailer 8$39,088 AUD
Retailer 4$40,047 AUD
Retailer 11$41,456 AUD
Retailer 6$60,408 AUD

51 data points across 11 retailers

4 retailers$37,823 AUD to $58,427 AUD

B+
Cheapest Retailer
-
$37,823 AUD
$26,600 USD
B+
Retailer 2
-
$37,823 AUD
$26,600 USD
View
B+
Retailer 3
-
$39,088 AUD
$27,490 USD
View
Most Expensive
B
Diamond Quarter
1.64IFE52493321N · Oct 28
$58,427 AUD
£32,355 GBP
View
3 more retailers have this diamond
Prices start from $37,823 AUDSave up to $20,605 AUD

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.

B+
1.64ct Round
$37,823 AUD