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Round|Natural|GIA

1.30ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1558914332

Certificate GIA 1558914332

Diamond specifications and retailer prices

From $4,042 AUD
As of November 6, 2026
Save $4,909 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,027 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 1558914332. Listed at 19 retailers as of November 4, 2026, with a 121% 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1558914332
Dimensions6.92 × 6.96 × 4.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.92 mm6.96 mm1.30 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558914332
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

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 6
Current: $10,027 AUD|Low: $4,042 AUD|High: $10,055 AUD|Avg: $6,200 AUD|+2.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9$4,042 AUD
Retailer 4$4,192 AUD
Retailer 7$4,721 AUD
Retailer 5$4,852 AUD
Retailer 2$5,520 AUD
Retailer 6$5,631 AUD
Retailer 3$6,270 AUD
Retailer 8$8,951 AUD
Queensmith$10,027 AUD

27 data points across 9 retailers

19 retailers$4,042 AUD to $8,951 AUD

A
Cheapest Retailer
-
$4,042 AUD
A
Retailer 2
-
$4,192 AUD
View
A
Retailer 3
-
$4,721 AUD
View
A
Retailer 4
-
$4,852 AUD
View
A
Retailer 5
-
$4,953 AUD
View
Final sale: no returns
A
Retailer 6
-
$4,969 AUD
View
A
Retailer 7
-
$5,248 AUD
View
Retailer 8
-
$5,368 AUD
View
Price last confirmed 40 days ago
Retailer 9
-
$5,368 AUD
View
Price last confirmed 22 days ago
A
Retailer 10
-
$5,370 AUD
View
A
Retailer 11
-
$5,520 AUD
View
Retailer 12
-
$5,574 AUD
View
Price last confirmed 39 days ago
A
Retailer 13
-
$5,579 AUD
View
A
Retailer 14
-
$5,631 AUD
View
Retailer 15
-
$6,193 AUD
View
Price last confirmed 39 days ago
A
Retailer 16
-
$6,270 AUD
View
B+
Retailer 17
-
$8,951 AUD
View
Retailer 18
-
$9,351 AUD
View
Price last confirmed 40 days ago
Most Expensive
Queensmith
1558914332 · Oct 28
$10,027 AUD
£5,425 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $4,042 AUDSave up to $4,909 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
$4,042 AUD