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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7451297901

Certificate GIA 7451297901

Diamond specifications and retailer prices

From $5,941 AUD
As of November 4, 2026
Save $8,897 AUD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,839 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7451297901. Listed at 14 retailers as of November 4, 2026, with prices from $5,941 to $14,839, a $8,897 spread on the same certified stone. Diamond Quarter lists it at $14,839. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7451297901
Dimensions7.06 × 7.01 × 4.28 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.06 mm7.01 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7451297901
Side View
Table 60.0%Crown 33°Girdle: ThickPavilion 41.4°Culet: NoneDepth 60.9%

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 4
Current: $7,382 AUD|Low: $5,238 AUD|High: $12,118 AUD|Avg: $7,615 AUD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$6,007 AUD
Retailer 6$6,043 AUD
Retailer 5$6,287 AUD
Retailer 9$6,340 AUD
Retailer 3$7,218 AUD
Retailer 1$7,382 AUD
Retailer 7$8,297 AUD
Retailer 8$8,945 AUD
Retailer 2$11,941 AUD

38 data points across 9 retailers

14 retailers$5,941 AUD to $14,839 AUD

A
Cheapest Retailer
-
$5,941 AUD
A
Retailer 2
-
$6,007 AUD
View
A
Retailer 3
-
$6,043 AUD
View
A
Retailer 4
-
$6,287 AUD
View
Final sale: no returns
A
Retailer 5
-
$6,340 AUD
View
A
Retailer 6
-
$7,218 AUD
View
A
Retailer 7
-
$7,382 AUD
View
B+
Retailer 8
-
$7,642 AUD
View
B+
Retailer 9
-
$7,642 AUD
View
B+
Retailer 10
-
$7,900 AUD
View
Retailer 11
-
$8,297 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$11,941 AUD
View
Retailer 13
-
$12,574 AUD
View
Price last confirmed 20 days ago
Most Expensive
B
Diamond Quarter
1.3SI2D7401BFFEN · Nov 5
$14,839 AUD
£8,179 GBP
View
13 more retailers have this diamond
Prices start from $5,941 AUDSave up to $8,897 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
$5,941 AUD