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Radiant|Natural|GIA

1.30ct H SI2 Radiant Natural Diamond

ID • H/SI2 • GIA 6545383203

Certificate GIA 6545383203

Diamond specifications and retailer prices

From $4,320 AUD
As of November 6, 2026
Save $5,482 AUD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,802 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545383203. Listed at 19 retailers as of November 5, 2026, with prices from $4,320 to $9,802, a $5,482 spread on the same certified stone. NZ Jewellers lists it at $9,802. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle49.89°
Pavilion angle64.81°
OriginNatural
Grading LabGIA
CertificateGIA 6545383203
Dimensions7.35 × 5.46 × 3.82 mm
L/W Ratio1.35
Top View
7.35 mm5.46 mm1.30 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545383203
Side View
Table 67.0%Crown 49.89°Girdle: THN-STKPavilion 64.81°Culet: NoneDepth 69.9%

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 6
Current: $5,698 AUD|Low: $4,320 AUD|High: $9,510 AUD|Avg: $5,987 AUD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 2$4,320 AUD
Retailer 8$4,340 AUD
Retailer 7$5,175 AUD
Retailer 4$5,465 AUD
Retailer 3$5,532 AUD
Retailer 1$5,698 AUD
Retailer 5$6,549 AUD
Retailer 6$9,409 AUD

28 data points across 8 retailers

19 retailers$4,320 AUD to $9,802 AUD

A
Cheapest Retailer
-
$4,320 AUD
A
Retailer 2
-
$4,340 AUD
View
A
Retailer 3
-
$4,804 AUD
View
A
Retailer 4
-
$4,950 AUD
View
A
Retailer 5
-
$5,175 AUD
View
A
Retailer 6
-
$5,193 AUD
View
Final sale: no returns
B+
Retailer 7
-
$5,465 AUD
View
A
Retailer 8
-
$5,532 AUD
View
B+
Retailer 9
-
$5,627 AUD
View
Retailer 10
-
$5,627 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$5,698 AUD
View
B+
Retailer 12
-
$5,839 AUD
View
B+
Retailer 13
-
$5,843 AUD
View
B+
Retailer 14
-
$5,894 AUD
View
B+
Retailer 15
-
$5,980 AUD
View
B+
Retailer 16
-
$6,493 AUD
View
B+
Retailer 17
-
$6,549 AUD
View
B
Retailer 18
-
$9,409 AUD
View
Most Expensive
B
NZ Jewellers
c985fac9-0906-498c-88ee-976978e593ff · Nov 5
$9,802 AUD
$6,735 USD
View
18 more retailers have this diamond
Prices start from $4,320 AUDSave up to $5,482 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 Radiant
$4,320 AUD