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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2241054737

Certificate GIA 2241054737

Diamond specifications and retailer prices

From $4,432 AUD
As of November 4, 2026
Save $3,998 AUD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,430 AUD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2241054737. Listed at 15 retailers as of November 4, 2026, with prices from $4,432 to $8,430, a $3,998 spread on the same certified stone. Helzberg Diamonds lists it at $8,430. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2241054737
Dimensions6.92 × 6.97 × 4.35 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.92 mm6.97 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2241054737
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.6%

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 4
Current: $8,430 AUD|Low: $4,432 AUD|High: $8,866 AUD|Avg: $5,891 AUD|-0.6%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$4,432 AUD
Retailer 9$4,539 AUD
Retailer 15$4,718 AUD
Retailer 14$4,778 AUD
Retailer 12$4,796 AUD
Retailer 8$5,138 AUD
Retailer 6$5,338 AUD
Retailer 4$5,670 AUD
Retailer 5$5,768 AUD
Retailer 10$5,870 AUD
Retailer 11$6,034 AUD
Retailer 2$6,805 AUD
Retailer 3$7,475 AUD
Retailer 7$7,967 AUD
Helzberg Diamonds$8,430 AUD

28 data points across 15 retailers

15 retailers$4,432 AUD to $8,430 AUD

A
Cheapest Retailer
-
$4,432 AUD
A
Retailer 2
-
$4,539 AUD
View
A
Retailer 3
-
$4,718 AUD
View
A
Retailer 4
-
$4,778 AUD
View
A
Retailer 5
-
$4,796 AUD
View
A
Retailer 6
-
$5,138 AUD
View
A
Retailer 7
-
$5,338 AUD
View
A
Retailer 8
-
$5,670 AUD
View
B+
Retailer 9
-
$5,768 AUD
View
B+
Retailer 10
-
$5,870 AUD
View
B+
Retailer 11
-
$6,034 AUD
View
B+
Retailer 12
-
$6,805 AUD
View
B+
Retailer 13
-
$7,475 AUD
View
B+
Retailer 14
-
$7,967 AUD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKHGLKNJN · Nov 6
$8,430 AUD
$5,792 USD
View
14 more retailers have this diamond
Prices start from $4,432 AUDSave up to $3,998 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
$4,432 AUD