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Round|Natural|IGI

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 723579389

Shape and cutting style on the report: Round brilliant

Certificate IGI 723579389

Diamond specifications and retailer prices

From $1,663 AUD
As of November 5, 2026
Save $3,470 AUD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,133 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 723579389. Listed at 13 retailers as of November 5, 2026, with prices from $1,663 to $5,133, a $3,470 spread on the same certified stone. NZ Jewellers lists it at $5,133. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 723579389
Dimensions7.01 × 6.95 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.01 mm6.95 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 723579389
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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 5
Current: $5,133 AUD|Low: $1,663 AUD|High: $5,133 AUD|Avg: $2,511 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$1,663 AUD
Retailer 4$1,950 AUD
Retailer 10$1,950 AUD
Retailer 2$2,041 AUD
Retailer 3$2,104 AUD
Retailer 11$2,104 AUD
Retailer 5$2,187 AUD
Retailer 13$2,201 AUD
Retailer 12$2,428 AUD
Retailer 6$2,457 AUD
Retailer 9$2,858 AUD
Retailer 8$3,677 AUD
NZ Jewellers$5,133 AUD

41 data points across 13 retailers

13 retailers$1,663 AUD to $5,133 AUD

A
Cheapest Retailer
-
$1,663 AUD
A
Retailer 2
-
$1,950 AUD
View
A
Retailer 3
-
$1,950 AUD
View
A
Retailer 4
-
$2,041 AUD
View
Retailer 5
-
$2,104 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,104 AUD
View
A
Retailer 7
-
$2,187 AUD
View
A
Retailer 8
-
$2,201 AUD
View
B+
Retailer 9
-
$2,428 AUD
View
A
Retailer 10
-
$2,457 AUD
View
A
Retailer 11
-
$2,858 AUD
View
B+
Retailer 12
-
$3,677 AUD
View
Most Expensive
B
NZ Jewellers
8466b8dc-a2a6-4b65-bbc3-0a714fdfbfd0 · Nov 5
$5,133 AUD
$3,593 USD
View
12 more retailers have this diamond
Prices start from $1,663 AUDSave up to $3,470 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
$1,663 AUD