CaratHunter
Plans
Round|Natural|IGI

1.64ct J IF Round Natural Diamond

EX • J/IF • IGI 683598427

Shape and cutting style on the report: Round brilliant

Certificate IGI 683598427

Diamond specifications and retailer prices

From $5,649 AUD
$3,959 USD
As of November 1, 2026
Save $5,636 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,285 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.64ct natural round diamond

This 1.64ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 683598427. Listed at 15 retailers as of November 1, 2026, with prices from $5,649 to $11,285, a $5,636 spread on the same certified stone. NZ Jewellers lists it at $11,285. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.9°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 683598427
Dimensions7.55 × 7.49 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.55 mm7.49 mm1.64 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 683598427
Side View
Table 57.0%Crown 35.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.4%

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: $6,404 AUD|Low: $5,481 AUD|High: $10,442 AUD|Avg: $6,978 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11$5,649 AUD
Retailer 9$5,772 AUD
Retailer 10$5,979 AUD
Retailer 2$6,129 AUD
Retailer 1$6,404 AUD
Retailer 3$6,478 AUD
Retailer 4$6,654 AUD
Retailer 5$6,886 AUD
Retailer 8$7,267 AUD
Retailer 7$7,963 AUD
Retailer 6$10,317 AUD

40 data points across 11 retailers

15 retailers$5,649 AUD to $11,285 AUD

A
Cheapest Retailer
-
$5,649 AUD
$3,959 USD
A
Retailer 2
-
$5,772 AUD
$4,045 USD
View
A
Retailer 3
-
$5,979 AUD
$4,190 USD
View
Final sale: no returns
A
Retailer 4
-
$6,129 AUD
$4,295 USD
View
A
Retailer 5
-
$6,404 AUD
£3,534 GBP
View
A
Retailer 6
-
$6,478 AUD
$4,540 USD
View
A
Retailer 7
-
$6,478 AUD
$4,540 USD
View
A
Retailer 8
-
$6,478 AUD
$4,540 USD
View
A
Retailer 9
-
$6,654 AUD
£3,672 GBP
View
A
Retailer 10
-
$6,886 AUD
€4,596 EUR
View
A
Retailer 11
-
$7,267 AUD
£4,010 GBP
View
A
Retailer 12
-
$7,474 AUD
$5,238 USD
View
A
Retailer 13
-
$7,963 AUD
ZAR 90,150 ZAR
View
B+
Retailer 14
-
$10,317 AUD
£5,693 GBP
View
Most Expensive
B+
NZ Jewellers
584521c7-ea5c-464a-8124-cdb2117cf189 · Nov 2
$11,285 AUD
$7,909 USD
View
14 more retailers have this diamond
Prices start from $5,649 AUDSave up to $5,636 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.

A
1.64ct Round
$5,649 AUD