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Round|Natural|GIA

1.30ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6485801399

Certificate GIA 6485801399

Diamond specifications and retailer prices

From $4,961 AUD
As of November 1, 2026
Save $9,247 AUD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,209 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6485801399. Listed at 20 retailers as of November 1, 2026, with prices from $4,961 to $14,209, a $9,247 spread on the same certified stone. Diamond Quarter lists it at $14,209. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6485801399
Dimensions6.91 × 6.94 × 4.35 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.91 mm6.94 mm1.30 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6485801399
Side View
Table 56.0%Crown 35.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.8%

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 1
Current: $5,791 AUD|Low: $4,961 AUD|High: $10,536 AUD|Avg: $6,709 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 10$4,961 AUD
Retailer 11$5,087 AUD
Retailer 2$5,629 AUD
Retailer 3$5,695 AUD
Retailer 1$5,791 AUD
Retailer 4$5,913 AUD
Retailer 12$6,225 AUD
Retailer 8$6,274 AUD
Retailer 5$6,570 AUD
Retailer 6$6,674 AUD
Retailer 13$7,407 AUD
Retailer 7$9,090 AUD
Retailer 9$10,464 AUD

37 data points across 13 retailers

20 retailers$4,961 AUD to $14,209 AUD

A
Cheapest Retailer
-
$4,961 AUD
A
Retailer 2
-
$5,087 AUD
View
B+
Retailer 3
-
$5,629 AUD
View
B+
Retailer 4
-
$5,695 AUD
View
B+
Retailer 5
-
$5,791 AUD
View
B+
Retailer 6
-
$5,913 AUD
View
Retailer 7
-
$6,225 AUD
View
Price last confirmed 56 days ago
Retailer 8
-
$6,225 AUD
View
Price last confirmed 19 days ago
Retailer 9
-
$6,225 AUD
View
Price last confirmed 21 days ago
Retailer 10
-
$6,225 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$6,274 AUD
View
B+
Retailer 12
-
$6,570 AUD
View
B+
Retailer 13
-
$6,674 AUD
View
Retailer 14
-
$7,182 AUD
View
Price last confirmed 60 days ago
Retailer 15
-
$7,182 AUD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$9,090 AUD
View
Retailer 17
-
$10,464 AUD
View
Price last confirmed 8 days ago
Retailer 18
-
$10,844 AUD
View
Price last confirmed 57 days ago
Retailer 19
-
$10,844 AUD
View
Price last confirmed 20 days ago
Most Expensive
B
Diamond Quarter
1.3SI2H649971CEN · Nov 5
$14,209 AUD
£7,687 GBP
View
19 more retailers have this diamond
Prices start from $4,961 AUDSave up to $9,247 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
$4,961 AUD