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Round|Natural|GIA

1.30ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6561279776

Certificate GIA 6561279776

Diamond specifications and retailer prices

From $4,150 AUD
As of November 4, 2026
Save $5,437 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,032 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 6561279776. Listed at 19 retailers as of November 2, 2026, with a 131% 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6561279776
Dimensions6.96 × 7.00 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
6.96 mm7.00 mm1.30 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561279776
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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: $10,032 AUD|Low: $4,150 AUD|High: $10,069 AUD|Avg: $6,265 AUD|+2.2%
Queensmith
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 4$4,150 AUD
Retailer 14$4,244 AUD
Retailer 2$4,748 AUD
Retailer 15$4,841 AUD
Retailer 9$4,957 AUD
Retailer 12$4,994 AUD
Retailer 11$5,145 AUD
Retailer 5$5,503 AUD
Retailer 7$5,503 AUD
Retailer 16$5,593 AUD
Retailer 10$5,618 AUD
Retailer 6$5,714 AUD
Retailer 13$6,243 AUD
Retailer 17$6,415 AUD
Retailer 3$9,201 AUD
Retailer 8$9,587 AUD
Queensmith$10,032 AUD

35 data points across 17 retailers

19 retailers$4,150 AUD to $9,587 AUD

A
Cheapest Retailer
-
$4,150 AUD
A
Retailer 2
-
$4,244 AUD
View
A
Retailer 3
-
$4,748 AUD
View
A
Retailer 4
-
$4,841 AUD
View
A
Retailer 5
-
$4,957 AUD
View
A
Retailer 6
-
$4,965 AUD
View
A
Retailer 7
-
$4,994 AUD
View
Final sale: no returns
A
Retailer 8
-
$5,051 AUD
View
A
Retailer 9
-
$5,145 AUD
View
A
Retailer 10
-
$5,503 AUD
View
Retailer 11
-
$5,503 AUD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$5,593 AUD
View
A
Retailer 13
-
$5,618 AUD
View
A
Retailer 14
-
$5,714 AUD
View
A
Retailer 15
-
$6,243 AUD
View
A
Retailer 16
-
$6,415 AUD
View
B+
Retailer 17
-
$9,201 AUD
View
B
Retailer 18
-
$9,587 AUD
View
Most Expensive
Queensmith
6561279776 · Oct 28
$10,032 AUD
£5,530 GBP
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $4,150 AUDSave up to $5,437 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
$4,150 AUD