CaratHunter
Plans
Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2564026103

Certificate GIA 2564026103

Diamond specifications and retailer prices

From $3,743 AUD
As of November 6, 2026
Save $5,069 AUD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,812 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564026103. Listed at 9 retailers as of November 5, 2026, with prices from $3,743 to $8,812, a $5,069 spread on the same certified stone. NZ Jewellers lists it at $8,812. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2564026103
Dimensions6.86 × 6.91 × 4.38 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
6.86 mm6.91 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564026103
Side View
Table 55.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.6%

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: $8,812 AUD|Low: $3,743 AUD|High: $9,202 AUD|Avg: $5,798 AUD|-4.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$3,743 AUD
Retailer 5$4,291 AUD
Retailer 9$4,551 AUD
Retailer 6$5,059 AUD
Retailer 2$5,194 AUD
Retailer 7$5,253 AUD
Retailer 3$5,758 AUD
Retailer 4$8,437 AUD
NZ Jewellers$8,812 AUD

43 data points across 9 retailers

9 retailers$3,743 AUD to $8,812 AUD

A
Cheapest Retailer
-
$3,743 AUD
A
Retailer 2
-
$4,291 AUD
View
A
Retailer 3
-
$4,551 AUD
View
A
Retailer 4
-
$5,059 AUD
View
A
Retailer 5
-
$5,194 AUD
View
A
Retailer 6
-
$5,253 AUD
View
B+
Retailer 7
-
$5,758 AUD
View
B
Retailer 8
-
$8,437 AUD
View
Most Expensive
B
NZ Jewellers
c6d91330-ee31-4eda-9055-1da821fc3b0d · Nov 5
$8,812 AUD
$6,055 USD
View
8 more retailers have this diamond
Prices start from $3,743 AUDSave up to $5,069 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
$3,743 AUD