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Round|Natural|GIA

1.13ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2426727779

Certificate GIA 2426727779

Diamond specifications and retailer prices

From $1,764 AUD
As of November 5, 2026
Save $2,250 AUD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,605 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.13ct natural round diamond

This 1.13ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2426727779. Listed at 13 retailers as of November 4, 2026, with a 128% 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

1.13
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2426727779
Dimensions6.66 × 6.61 × 4.17 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.66 mm6.61 mm1.13 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2426727779
Side View
Table 56.0%Crown 36.5°Girdle: ThickPavilion 40.8°Culet: NoneDepth 62.8%

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 5
Current: $2,370 AUD|Low: $1,764 AUD|High: $4,074 AUD|Avg: $2,598 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$1,764 AUD
Retailer 7$2,130 AUD
Retailer 6$2,157 AUD
Retailer 8$2,268 AUD
Retailer 1$2,370 AUD
Retailer 9$2,401 AUD
Retailer 2$2,534 AUD
Retailer 5$3,126 AUD
Retailer 4$4,014 AUD

43 data points across 9 retailers

13 retailers$1,764 AUD to $4,014 AUD

A
Cheapest Retailer
-
$1,764 AUD
A
Retailer 2
-
$2,130 AUD
View
A
Retailer 3
-
$2,157 AUD
View
Retailer 4
-
$2,298 AUD
View
Price last confirmed 25 days ago
Retailer 5
-
$2,298 AUD
View
Price last confirmed 29 days ago
A
Retailer 6
-
$2,370 AUD
View
A
Retailer 7
-
$2,401 AUD
View
Retailer 8
-
$2,404 AUD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$2,534 AUD
View
Retailer 10
-
$2,651 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$3,126 AUD
View
B+
Retailer 12
-
$4,014 AUD
View
Most Expensive
NZ Jewellers
3f952fea-e8b3-4c30-bda0-cacd92dd84cb · Sep 28
$5,605 AUD
$3,924 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from $1,764 AUDSave up to $2,250 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
1.13ct Round
$1,764 AUD