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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1563102456

Certificate GIA 1563102456

Diamond specifications and retailer prices

From $4,596 AUD
As of November 6, 2026
Save $5,586 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,242 AUD at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1563102456. Listed at 12 retailers as of November 4, 2026, with a 122% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1563102456
Dimensions6.90 × 6.94 × 4.32 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
6.90 mm6.94 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563102456
Side View
Table 57.0%Crown 36°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: $4,596 AUD|Low: $4,564 AUD|High: $10,450 AUD|Avg: $6,247 AUD|-7.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1$4,596 AUD
Retailer 5$4,601 AUD
Retailer 7$5,635 AUD
Retailer 6$5,807 AUD
Retailer 8$5,810 AUD
Retailer 2$5,842 AUD
Retailer 4$6,525 AUD
Retailer 9$6,666 AUD
Retailer 3$10,182 AUD

35 data points across 9 retailers

12 retailers$4,596 AUD to $10,182 AUD

A
Cheapest Retailer
-
$4,596 AUD
A
Retailer 2
-
$4,601 AUD
View
B+
Retailer 3
-
$5,635 AUD
View
Final sale: no returns
B+
Retailer 4
-
$5,807 AUD
View
Retailer 5
-
$5,810 AUD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$5,842 AUD
View
B+
Retailer 7
-
$6,241 AUD
View
Retailer 8
-
$6,452 AUD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
$6,525 AUD
View
Retailer 10
-
$6,666 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$10,182 AUD
View
Most Expensive
NZ Jewellers
b35137df-e50c-491b-a2c0-f61ffd5b4380 · Sep 28
$11,242 AUD
$7,724 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from $4,596 AUDSave up to $5,586 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
$4,596 AUD