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Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2564101820

Certificate GIA 2564101820

Diamond specifications and retailer prices

From $6,223 AUD
As of November 5, 2026
Save $8,308 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,531 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564101820. Listed at 16 retailers as of November 5, 2026, with prices from $6,223 to $14,531, a $8,308 spread on the same certified stone. NZ Jewellers lists it at $14,531. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2564101820
Dimensions6.97 × 7.01 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.97 mm7.01 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2564101820
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.8°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 5
Current: $8,528 AUD|Low: $6,223 AUD|High: $12,936 AUD|Avg: $8,795 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$6,223 AUD
Retailer 8$6,843 AUD
Retailer 2$6,923 AUD
Retailer 11$8,092 AUD
Retailer 9$8,198 AUD
Retailer 1$8,528 AUD
Retailer 3$8,632 AUD
Retailer 5$8,840 AUD
Retailer 6$9,594 AUD
Retailer 4$10,145 AUD
Retailer 10$12,764 AUD

38 data points across 11 retailers

16 retailers$6,223 AUD to $14,531 AUD

A
Cheapest Retailer
-
$6,223 AUD
A
Retailer 2
-
$6,843 AUD
View
A
Retailer 3
-
$6,923 AUD
View
Final sale: no returns
B+
Retailer 4
-
$7,577 AUD
View
B+
Retailer 5
-
$8,092 AUD
View
B+
Retailer 6
-
$8,198 AUD
View
B+
Retailer 7
-
$8,528 AUD
View
Retailer 8
-
$8,632 AUD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$8,688 AUD
View
Retailer 10
-
$8,688 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$8,688 AUD
View
B+
Retailer 12
-
$8,840 AUD
View
B
Retailer 13
-
$9,594 AUD
View
B+
Retailer 14
-
$10,145 AUD
View
B
Retailer 15
-
$12,764 AUD
View
Most Expensive
B
NZ Jewellers
35f05874-dbfd-4f90-be40-5e164d6b2531 · Nov 5
$14,531 AUD
$10,172 USD
View
15 more retailers have this diamond
Prices start from $6,223 AUDSave up to $8,308 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
$6,223 AUD