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Round|Natural|GIA

1.30ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7543911942

Certificate GIA 7543911942

Diamond specifications and retailer prices

From $3,241 AUD
As of November 6, 2026
Save $3,991 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,134 AUD at NZ Jewellers · As of September 28, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7543911942. Listed at 19 retailers as of November 2, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7543911942
Dimensions6.97 × 7.00 × 4.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
6.97 mm7.00 mm1.30 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7543911942
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.5%

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: $4,925 AUD|Low: $3,241 AUD|High: $7,319 AUD|Avg: $4,539 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$3,241 AUD
Retailer 6$3,355 AUD
Retailer 12$3,835 AUD
Retailer 11$3,924 AUD
Retailer 4$3,986 AUD
Retailer 8$4,013 AUD
Retailer 5$4,323 AUD
Retailer 10$4,475 AUD
Retailer 9$4,497 AUD
Retailer 1$4,925 AUD
Retailer 2$5,044 AUD
Retailer 3$7,232 AUD

27 data points across 12 retailers

19 retailers$3,241 AUD to $7,232 AUD

A
Cheapest Retailer
-
$3,241 AUD
A
Retailer 2
-
$3,355 AUD
View
A
Retailer 3
-
$3,835 AUD
View
A
Retailer 4
-
$3,924 AUD
View
Final sale: no returns
A
Retailer 5
-
$3,986 AUD
View
A
Retailer 6
-
$4,013 AUD
View
A
Retailer 7
-
$4,074 AUD
View
A
Retailer 8
-
$4,323 AUD
View
Retailer 9
-
$4,324 AUD
View
Price last confirmed 17 days ago
Retailer 10
-
$4,324 AUD
View
Price last confirmed 21 days ago
Retailer 11
-
$4,369 AUD
View
Price last confirmed 39 days ago
A
Retailer 12
-
$4,475 AUD
View
A
Retailer 13
-
$4,497 AUD
View
Retailer 14
-
$4,536 AUD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$4,925 AUD
View
Retailer 16
-
$5,042 AUD
View
Price last confirmed 38 days ago
A
Retailer 17
-
$5,044 AUD
View
B
Retailer 18
-
$7,232 AUD
View
Most Expensive
NZ Jewellers
a1bf621d-fb83-4a27-815e-d3680ff2bb79 · Sep 28
$9,134 AUD
$6,276 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from $3,241 AUDSave up to $3,991 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
$3,241 AUD