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Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7493732351

Shape and cutting style on the report: Round brilliant

Certificate GIA 7493732351

Diamond specifications and retailer prices

From $3,217 AUD
As of November 6, 2026
Save $5,771 AUD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,988 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7493732351. Listed at 14 retailers as of November 5, 2026, with prices from $3,217 to $8,988, a $5,771 spread on the same certified stone. NZ Jewellers lists it at $8,988. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7493732351
Dimensions7.04 × 7.00 × 4.28 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.04 mm7.00 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7493732351
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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: $8,988 AUD|Low: $3,181 AUD|High: $8,988 AUD|Avg: $4,756 AUD
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
Retailer 15
November 6, 2026
Retailer 11$3,217 AUD
Retailer 12$3,487 AUD
Retailer 14$3,658 AUD
Retailer 13$3,828 AUD
Retailer 4$3,894 AUD
Retailer 6$3,894 AUD
Retailer 3$4,044 AUD
Retailer 15$4,186 AUD
Retailer 5$4,494 AUD
Retailer 2$4,524 AUD
Retailer 10$4,567 AUD
Retailer 7$4,991 AUD
Retailer 8$5,247 AUD
Retailer 9$7,170 AUD
NZ Jewellers$8,988 AUD

43 data points across 15 retailers

14 retailers$3,217 AUD to $8,988 AUD

A
Cheapest Retailer
-
$3,217 AUD
A
Retailer 2
-
$3,487 AUD
View
B+
Retailer 3
-
$3,658 AUD
View
B+
Retailer 4
-
$3,828 AUD
View
B+
Retailer 5
-
$3,894 AUD
View
Retailer 6
-
$3,894 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,044 AUD
View
B+
Retailer 8
-
$4,494 AUD
View
B+
Retailer 9
-
$4,524 AUD
View
B+
Retailer 10
-
$4,567 AUD
View
Retailer 11
-
$4,991 AUD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$5,247 AUD
View
B
Retailer 13
-
$7,170 AUD
View
Most Expensive
B
NZ Jewellers
d9853eb9-a014-4d35-b548-87f36da0af22 · Nov 5
$8,988 AUD
$6,292 USD
View
13 more retailers have this diamond
Prices start from $3,217 AUDSave up to $5,771 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
$3,217 AUD