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Round|Natural|GIA

1.30ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2566500090

Certificate GIA 2566500090

Diamond specifications and retailer prices

From $5,515 AUD
As of November 7, 2026
Save $5,919 AUD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,434 AUD at MOH London · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566500090. Listed at 14 retailers as of November 2, 2026, with prices from $5,515 to $11,434, a $5,919 spread on the same certified stone. MOH London lists it at $11,434. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2566500090
Dimensions6.90 × 6.94 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.90 mm6.94 mm1.30 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566500090
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $11,434 AUD|Low: $5,515 AUD|High: $11,495 AUD|Avg: $7,367 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
November 7, 2026
Retailer 9$5,515 AUD
Retailer 4$5,737 AUD
Retailer 8$6,140 AUD
Retailer 7$6,612 AUD
Retailer 12$7,083 AUD
Retailer 3$7,306 AUD
Retailer 13$7,306 AUD
Retailer 5$7,554 AUD
Retailer 2$7,616 AUD
Retailer 6$7,794 AUD
Retailer 11$7,925 AUD
Retailer 10$8,264 AUD
MOH London$11,434 AUD

9 data points across 13 retailers

14 retailers$5,515 AUD to $11,434 AUD

A
Cheapest Retailer
-
$5,515 AUD
A
Retailer 2
-
$5,737 AUD
View
A
Retailer 3
-
$5,935 AUD
View
A
Retailer 4
-
$6,140 AUD
View
B+
Retailer 5
-
$6,612 AUD
View
B+
Retailer 6
-
$7,083 AUD
View
Retailer 7
-
$7,131 AUD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$7,306 AUD
View
B+
Retailer 9
-
$7,306 AUD
View
B+
Retailer 10
-
$7,554 AUD
View
B+
Retailer 11
-
$7,616 AUD
View
B+
Retailer 12
-
$7,794 AUD
View
B
Retailer 13
-
$8,264 AUD
View
Most Expensive
B
MOH London
4F069E727 · Nov 2
$11,434 AUD
£6,186 GBP
View
13 more retailers have this diamond
Prices start from $5,515 AUDSave up to $5,919 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
$5,515 AUD