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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7493452927

Certificate GIA 7493452927

Diamond specifications and retailer prices

From $4,180 AUD
As of November 6, 2026
Save $6,617 AUD (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,797 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7493452927. Listed at 18 retailers as of November 5, 2026, with prices from $4,180 to $10,797, a $6,617 spread on the same certified stone. Diamond Quarter lists it at $10,797. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7493452927
Dimensions6.98 × 6.93 × 4.35 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Top View
6.98 mm6.93 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7493452927
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 6
Current: $4,506 AUD|Low: $4,235 AUD|High: $7,958 AUD|Avg: $5,194 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,235 AUD
Retailer 8$4,346 AUD
Retailer 1$4,506 AUD
Retailer 2$4,842 AUD
Retailer 9$5,047 AUD
Retailer 4$5,443 AUD
Retailer 3$5,471 AUD
Retailer 5$5,747 AUD
Retailer 6$7,853 AUD

36 data points across 9 retailers

18 retailers$4,180 AUD to $10,797 AUD

A
Cheapest Retailer
-
$4,180 AUD
A
Retailer 2
-
$4,235 AUD
View
A
Retailer 3
-
$4,346 AUD
View
Final sale: no returns
A
Retailer 4
-
$4,506 AUD
View
A
Retailer 5
-
$4,563 AUD
View
Retailer 6
-
$4,708 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$4,708 AUD
View
A
Retailer 8
-
$4,842 AUD
View
A
Retailer 9
-
$4,890 AUD
View
Retailer 10
-
$5,047 AUD
View
Price last confirmed 34 days ago
A
Retailer 11
-
$5,239 AUD
View
B+
Retailer 12
-
$5,433 AUD
View
A
Retailer 13
-
$5,443 AUD
View
A
Retailer 14
-
$5,471 AUD
View
B+
Retailer 15
-
$5,747 AUD
View
B+
Retailer 16
-
$7,853 AUD
View
B
Retailer 17
-
$8,204 AUD
View
Most Expensive
B
Diamond Quarter
1.3SI1H74271285N · Nov 5
$10,797 AUD
£5,842 GBP
View
17 more retailers have this diamond
Prices start from $4,180 AUDSave up to $6,617 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
$4,180 AUD