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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 $5,061 SGD
$3,959 USD
As of October 30, 2026
Save $5,050 SGD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,111 SGD 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 $5,061 to $10,111, a $5,050 spread on the same certified stone. NZ Jewellers lists it at $10,111. 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

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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 30
Current: $6,169 SGD|Low: $4,910 SGD|High: $9,355 SGD|Avg: $6,299 SGD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11$5,061 SGD
Retailer 9$5,171 SGD
Retailer 10$5,356 SGD
Retailer 2$5,491 SGD
Retailer 4$5,738 SGD
Retailer 3$5,804 SGD
Retailer 6$6,012 SGD
Retailer 1$6,169 SGD
Retailer 8$6,511 SGD
Retailer 7$7,134 SGD
Retailer 5$9,243 SGD

39 data points across 11 retailers

15 retailers$5,061 SGD to $10,111 SGD

A
Cheapest Retailer
-
$5,061 SGD
$3,959 USD
A
Retailer 2
-
$5,171 SGD
$4,045 USD
View
A
Retailer 3
-
$5,356 SGD
$4,190 USD
View
Final sale: no returns
A
Retailer 4
-
$5,491 SGD
$4,295 USD
View
A
Retailer 5
-
$5,738 SGD
£3,534 GBP
View
A
Retailer 6
-
$5,804 SGD
$4,540 USD
View
A
Retailer 7
-
$5,804 SGD
$4,540 USD
View
A
Retailer 8
-
$5,804 SGD
$4,540 USD
View
A
Retailer 9
-
$6,012 SGD
£3,703 GBP
View
A
Retailer 10
-
$6,169 SGD
€4,596 EUR
View
A
Retailer 11
-
$6,511 SGD
£4,010 GBP
View
A
Retailer 12
-
$6,696 SGD
$5,238 USD
View
A
Retailer 13
-
$7,134 SGD
ZAR 90,150 ZAR
View
B+
Retailer 14
-
$9,243 SGD
£5,693 GBP
View
Most Expensive
B+
NZ Jewellers
584521c7-ea5c-464a-8124-cdb2117cf189 · Oct 30
$10,111 SGD
$7,909 USD
View
14 more retailers have this diamond
Prices start from $5,061 SGDSave up to $5,050 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
$5,061 SGD