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Round|Natural|IGI

1.30ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 648418570

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418570

Diamond specifications and retailer prices

From $1,768 AUD
As of November 6, 2026
Save $4,281 AUD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,050 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 648418570. Listed at 13 retailers as of November 5, 2026, with prices from $1,768 to $6,050, a $4,281 spread on the same certified stone. NZ Jewellers lists it at $6,050. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 648418570
Dimensions7.10 × 7.13 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.10 mm7.13 mm1.30 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 648418570
Side View
Table 61.0%Crown 32.4°Girdle: MediumPavilion 41.7°Culet: NoneDepth 59.8%

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 6
Current: $1,768 AUD|Low: $1,768 AUD|High: $3,033 AUD|Avg: $2,525 AUD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$1,768 AUD
Retailer 2$2,406 AUD
Retailer 5$2,431 AUD
Retailer 6$2,571 AUD
Retailer 3$3,008 AUD
Retailer 4$3,027 AUD

38 data points across 6 retailers

13 retailers$1,768 AUD to $6,050 AUD

A
Cheapest Retailer
-
$1,768 AUD
B+
Retailer 2
-
$2,260 AUD
View
A
Retailer 3
-
$2,406 AUD
View
B+
Retailer 4
-
$2,431 AUD
View
B+
Retailer 5
-
$2,480 AUD
View
Retailer 6
-
$2,480 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,571 AUD
View
B+
Retailer 8
-
$2,596 AUD
View
B+
Retailer 9
-
$2,676 AUD
View
B+
Retailer 10
-
$2,863 AUD
View
B+
Retailer 11
-
$3,008 AUD
View
B+
Retailer 12
-
$3,027 AUD
View
Most Expensive
C
NZ Jewellers
a80bdee7-d393-4042-866c-f5ead6037532 · Nov 5
$6,050 AUD
$4,235 USD
View
12 more retailers have this diamond
Prices start from $1,768 AUDSave up to $4,281 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
$1,768 AUD