Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2564026103

Certificate GIA 2564026103

Diamond specifications and retailer prices

From $2,572 USD
As of November 6, 2026
Save $3,483 USD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,055 USD 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 $2,572 to $6,055, a $3,483 spread on the same certified stone. NZ Jewellers lists it at $6,055. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,055 USD|Low: $2,572 USD|High: $6,323 USD|Avg: $3,984 USD|-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$2,572 USD
Retailer 5$2,948 USD
Retailer 9$3,127 USD
Retailer 6$3,476 USD
Retailer 2$3,569 USD
Retailer 7$3,609 USD
Retailer 3$3,956 USD
Retailer 4$5,797 USD
NZ Jewellers$6,055 USD

43 data points across 9 retailers

9 retailers$2,572 USD to $6,055 USD

A
Cheapest Retailer
-
$2,572 USD
A
Retailer 2
-
$2,948 USD
View
A
Retailer 3
-
$3,127 USD
View
A
Retailer 4
-
$3,476 USD
View
A
Retailer 5
-
$3,569 USD
View
A
Retailer 6
-
$3,609 USD
View
B+
Retailer 7
-
$3,956 USD
View
B
Retailer 8
-
$5,797 USD
View
Most Expensive
B
NZ Jewellers
c6d91330-ee31-4eda-9055-1da821fc3b0d · Nov 5
$6,055 USD
View
8 more retailers have this diamond
Prices start from $2,572 USDSave up to $3,483 USD

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
$2,572 USD