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Round|Natural|GIA

1.30ct G SI2 Round Natural Diamond

VG • G/SI2 • GIA 6431543544

Certificate GIA 6431543544

Diamond specifications and retailer prices

From $3,751 AUD
As of October 31, 2026
Save $7,439 AUD (66%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,189 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6431543544. Listed at 18 retailers as of October 31, 2026, with prices from $3,751 to $11,189, a $7,439 spread on the same certified stone. Diamond Quarter lists it at $11,189. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6431543544
Dimensions6.99 × 6.91 × 4.30 mm
L/W Ratio1.01
Top View
6.99 mm6.91 mm1.30 ctG / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6431543544
Side View
Table 54.0%Crown 34.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 61.9%

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: Oct 31
Current: $4,733 AUD|Low: $3,740 AUD|High: $8,722 AUD|Avg: $5,152 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$3,751 AUD
Retailer 7$3,781 AUD
Retailer 8$4,628 AUD
Retailer 1$4,733 AUD
Retailer 9$4,762 AUD
Retailer 2$5,269 AUD
Retailer 3$5,308 AUD
Retailer 5$5,475 AUD
Retailer 4$8,607 AUD

32 data points across 9 retailers

18 retailers$3,751 AUD to $11,189 AUD

A
Cheapest Retailer
-
$3,751 AUD
A
Retailer 2
-
$3,781 AUD
View
A
Retailer 3
-
$4,446 AUD
View
A
Retailer 4
-
$4,628 AUD
View
A
Retailer 5
-
$4,733 AUD
View
B+
Retailer 6
-
$4,762 AUD
View
Final sale: no returns
Retailer 7
-
$4,886 AUD
View
Price last confirmed 109 days ago
B+
Retailer 8
-
$5,161 AUD
View
B+
Retailer 9
-
$5,269 AUD
View
A
Retailer 10
-
$5,308 AUD
View
B+
Retailer 11
-
$5,359 AUD
View
B+
Retailer 12
-
$5,370 AUD
View
A
Retailer 13
-
$5,475 AUD
View
B+
Retailer 14
-
$5,954 AUD
View
B
Retailer 15
-
$7,472 AUD
View
B
Retailer 16
-
$8,607 AUD
View
B
Retailer 17
-
$8,991 AUD
View
Most Expensive
B
Diamond Quarter
1.3SI2G64442BA8N · Nov 5
$11,189 AUD
£6,054 GBP
View
17 more retailers have this diamond
Prices start from $3,751 AUDSave up to $7,439 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
$3,751 AUD