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Round|Natural|GIA

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 7551285934

Certificate GIA 7551285934

Diamond specifications and retailer prices

From $2,431 AUD
As of November 4, 2026
Save $4,247 AUD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,678 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551285934. Listed at 14 retailers as of November 4, 2026, with prices from $2,431 to $6,678, a $4,247 spread on the same certified stone. NZ Jewellers lists it at $6,678. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551285934
Dimensions6.93 × 6.88 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.93 mm6.88 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551285934
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NDepth 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 4
Current: $6,678 AUD|Low: $2,431 AUD|High: $7,194 AUD|Avg: $3,562 AUD|-7.2%
NZ Jewellers
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
November 6, 2026
Retailer 10$2,431 AUD
Retailer 5$2,638 AUD
Retailer 12$2,671 AUD
Retailer 4$2,693 AUD
Retailer 13$2,708 AUD
Retailer 14$2,894 AUD
Retailer 6$2,921 AUD
Retailer 9$3,028 AUD
Retailer 3$3,121 AUD
Retailer 11$3,340 AUD
Retailer 2$3,451 AUD
Retailer 7$4,067 AUD
Retailer 8$5,581 AUD
NZ Jewellers$6,678 AUD

33 data points across 14 retailers

14 retailers$2,431 AUD to $6,678 AUD

A
Cheapest Retailer
-
$2,431 AUD
A
Retailer 2
-
$2,638 AUD
View
A
Retailer 3
-
$2,671 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,693 AUD
View
A
Retailer 5
-
$2,708 AUD
View
A
Retailer 6
-
$2,894 AUD
View
Retailer 7
-
$2,921 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$3,028 AUD
View
A
Retailer 9
-
$3,121 AUD
View
A
Retailer 10
-
$3,340 AUD
View
A
Retailer 11
-
$3,451 AUD
View
B+
Retailer 12
-
$4,067 AUD
View
B
Retailer 13
-
$5,581 AUD
View
Most Expensive
B
NZ Jewellers
0b48020f-87f4-4926-a40e-2acf5ca38a11 · Nov 5
$6,678 AUD
$4,675 USD
View
13 more retailers have this diamond
Prices start from $2,431 AUDSave up to $4,247 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
$2,431 AUD