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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 $3,959 USD
As of October 30, 2026
Save $3,950 USD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,909 USD at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from $3,959 to $7,909, a $3,950 spread on the same certified stone. NZ Jewellers lists it at $7,909. 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
Color
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: Oct 30
Current: $5,580 USD|Low: $3,841 USD|High: $7,318 USD|Avg: $4,948 USD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$3,959 USD
Retailer 9$4,045 USD
Retailer 10$4,190 USD
Retailer 2$4,295 USD
Retailer 4$4,502 USD
Retailer 3$4,540 USD
Retailer 5$4,702 USD
Retailer 6$4,860 USD
Retailer 8$5,093 USD
Retailer 1$5,580 USD
Retailer 7$7,269 USD

41 data points across 11 retailers

15 retailers$3,959 USD to $7,909 USD

A
Cheapest Retailer
-
$3,959 USD
A
Retailer 2
-
$4,045 USD
View
A
Retailer 3
-
$4,190 USD
View
Final sale: no returns
A
Retailer 4
-
$4,295 USD
View
A
Retailer 5
-
$4,502 USD
£3,545 GBP
View
A
Retailer 6
-
$4,540 USD
View
A
Retailer 7
-
$4,540 USD
View
A
Retailer 8
-
$4,540 USD
View
A
Retailer 9
-
$4,702 USD
£3,703 GBP
View
A
Retailer 10
-
$4,860 USD
€4,629 EUR
View
A
Retailer 11
-
$5,093 USD
£4,010 GBP
View
A
Retailer 12
-
$5,238 USD
View
A
Retailer 13
-
$5,580 USD
ZAR 90,150 ZAR
View
B+
Retailer 14
-
$7,269 USD
£5,724 GBP
View
Most Expensive
B+
NZ Jewellers
584521c7-ea5c-464a-8124-cdb2117cf189 · Oct 30
$7,909 USD
View
14 more retailers have this diamond
Prices start from $3,959 USDSave up to $3,950 USD

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
$3,959 USD