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Round|Natural|GIA

1.30ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1232537765

Certificate GIA 1232537765

Diamond specifications and retailer prices

From $6,743 AUD
As of November 4, 2026
Save $6,188 AUD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,931 AUD 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1232537765. Listed at 14 retailers as of November 4, 2026, with prices from $6,743 to $12,931, a $6,188 spread on the same certified stone. NZ Jewellers lists it at $12,931. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1232537765
Dimensions6.96 × 6.90 × 4.30 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity
Top View
6.96 mm6.90 mm1.30 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1232537765
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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: $12,931 AUD|Low: $6,383 AUD|High: $12,931 AUD|Avg: $8,390 AUD|+2.5%
NZ Jewellers
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 4$6,668 AUD
Retailer 9$6,743 AUD
Retailer 2$6,785 AUD
Retailer 7$6,807 AUD
Retailer 10$7,137 AUD
Retailer 3$7,731 AUD
Retailer 8$7,731 AUD
Retailer 12$7,731 AUD
Retailer 5$8,691 AUD
Retailer 11$8,921 AUD
Retailer 6$12,279 AUD
NZ Jewellers$12,931 AUD

41 data points across 12 retailers

14 retailers$6,743 AUD to $12,931 AUD

A
Cheapest Retailer
-
$6,743 AUD
A
Retailer 2
-
$6,785 AUD
View
A
Retailer 3
-
$6,807 AUD
View
B+
Retailer 4
-
$7,137 AUD
View
Final sale: no returns
Retailer 5
-
$7,544 AUD
View
Price last confirmed 53 days ago
Retailer 6
-
$7,731 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$7,731 AUD
View
B+
Retailer 8
-
$7,731 AUD
View
B+
Retailer 9
-
$8,691 AUD
View
Retailer 10
-
$8,704 AUD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$8,921 AUD
View
B
Retailer 12
-
$12,279 AUD
View
Retailer 13
-
$12,617 AUD
View
Price last confirmed 52 days ago
Most Expensive
B
NZ Jewellers
2dcaa998-d0e5-4762-b500-0229638737b9 · Nov 5
$12,931 AUD
$9,052 USD
View
13 more retailers have this diamond
Prices start from $6,743 AUDSave up to $6,188 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
$6,743 AUD