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Round|Natural|IGI

1.30ct J IF Round Natural Diamond

EX • J/IF • IGI 645414303

Shape and cutting style on the report: Round brilliant

Certificate IGI 645414303

Diamond specifications and retailer prices

From $4,330 AUD
As of November 4, 2026
Save $4,312 AUD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,642 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 645414303. Listed at 16 retailers as of November 4, 2026, with prices from $4,330 to $8,642, a $4,312 spread on the same certified stone. NZ Jewellers lists it at $8,642. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 645414303
Dimensions6.91 × 6.96 × 4.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.91 mm6.96 mm1.30 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 645414303
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41.3°Culet: NoneDepth 63.5%

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: Nov 4
Current: $5,164 AUD|Low: $4,242 AUD|High: $8,395 AUD|Avg: $5,716 AUD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$4,330 AUD
Retailer 8$4,577 AUD
Retailer 9$5,151 AUD
Retailer 1$5,164 AUD
Retailer 4$5,539 AUD
Retailer 2$5,758 AUD
Retailer 7$5,851 AUD
Retailer 3$6,054 AUD
Retailer 6$8,294 AUD

40 data points across 9 retailers

16 retailers$4,330 AUD to $8,642 AUD

A
Cheapest Retailer
-
$4,330 AUD
A
Retailer 2
-
$4,404 AUD
View
A
Retailer 3
-
$4,577 AUD
View
Final sale: no returns
A
Retailer 4
-
$4,788 AUD
View
A
Retailer 5
-
$4,857 AUD
View
Retailer 6
-
$4,960 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$4,960 AUD
View
A
Retailer 8
-
$5,151 AUD
View
A
Retailer 9
-
$5,164 AUD
View
A
Retailer 10
-
$5,170 AUD
View
A
Retailer 11
-
$5,539 AUD
View
A
Retailer 12
-
$5,724 AUD
View
A
Retailer 13
-
$5,758 AUD
View
A
Retailer 14
-
$6,054 AUD
View
B
Retailer 15
-
$8,294 AUD
View
Most Expensive
B
NZ Jewellers
96faee36-dbd8-4084-9f26-cf2b0b786fe9 · Nov 5
$8,642 AUD
$5,938 USD
View
15 more retailers have this diamond
Prices start from $4,330 AUDSave up to $4,312 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
1.30ct Round
$4,330 AUD