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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2536065047

Certificate GIA 2536065047

Diamond specifications and retailer prices

From $5,381 AUD
As of November 6, 2026
Save $2,855 AUD (35%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,809 AUD at MOH London · As of October 21, 2026
View at MOH London

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 2536065047. Listed at 18 retailers as of November 5, 2026, with a 53% 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2536065047
Dimensions6.87 × 6.92 × 4.33 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.87 mm6.92 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536065047
Side View
Table 58.0%Crown 36°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 6
Current: $10,809 AUD|Low: $5,174 AUD|High: $11,556 AUD|Avg: $7,331 AUD|-0.5%
MOH London
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
November 6, 2026
Retailer 15$5,381 AUD
Retailer 14$5,644 AUD
Retailer 3$5,814 AUD
Retailer 8$6,312 AUD
Retailer 2$6,459 AUD
Retailer 7$6,535 AUD
Retailer 12$6,590 AUD
Retailer 16$6,804 AUD
Retailer 5$6,884 AUD
Retailer 13$6,884 AUD
Retailer 4$7,117 AUD
Retailer 6$7,455 AUD
Retailer 11$7,513 AUD
Retailer 10$7,581 AUD
Retailer 9$8,236 AUD
MOH London$10,809 AUD

22 data points across 16 retailers

18 retailers$5,381 AUD to $8,236 AUD

A
Cheapest Retailer
-
$5,381 AUD
B+
Retailer 2
-
$5,644 AUD
View
Final sale: no returns
B+
Retailer 3
-
$5,814 AUD
View
Retailer 4
-
$6,116 AUD
View
Price last confirmed 30 days ago
Retailer 5
-
$6,116 AUD
View
Price last confirmed 26 days ago
Retailer 6
-
$6,116 AUD
View
Price last confirmed 39 days ago
B+
Retailer 7
-
$6,459 AUD
View
Retailer 8
-
$6,590 AUD
View
Price last confirmed 15 days ago
Retailer 9
-
$6,804 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
$6,884 AUD
View
B+
Retailer 11
-
$6,884 AUD
View
Retailer 12
-
$7,056 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$7,117 AUD
View
Retailer 14
-
$7,455 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$7,513 AUD
View
B+
Retailer 16
-
$7,581 AUD
View
B
Retailer 17
-
$8,236 AUD
View
Most Expensive
MOH London
A7134407C · Oct 21
$10,809 AUD
£5,848 GBP
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $5,381 AUDSave up to $2,855 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
$5,381 AUD