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Round|Natural|GIA

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558372388

Certificate GIA 1558372388

Diamond specifications and retailer prices

From $3,392 NZD
As of November 4, 2026
Save $5,922 NZD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,314 NZD 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 1558372388. Listed at 15 retailers as of November 4, 2026, with prices from $3,392 to $9,314, a $5,922 spread on the same certified stone. NZ Jewellers lists it at $9,314. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558372388
Dimensions6.92 × 6.95 × 4.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.92 mm6.95 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558372388
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: $9,314 NZD|Low: $3,302 NZD|High: $9,366 NZD|Avg: $4,612 NZD|-0.6%
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 10$3,392 NZD
Retailer 11$3,522 NZD
Retailer 5$3,625 NZD
Retailer 14$3,647 NZD
Retailer 13$3,725 NZD
Retailer 15$3,732 NZD
Retailer 6$3,885 NZD
Retailer 7$3,971 NZD
Retailer 3$4,036 NZD
Retailer 9$4,223 NZD
Retailer 12$4,657 NZD
Retailer 2$4,686 NZD
Retailer 8$5,194 NZD
Retailer 4$7,676 NZD
NZ Jewellers$9,314 NZD

31 data points across 15 retailers

15 retailers$3,392 NZD to $9,314 NZD

A
Cheapest Retailer
-
$3,392 NZD
A
Retailer 2
-
$3,522 NZD
View
A
Retailer 3
-
$3,625 NZD
View
A
Retailer 4
-
$3,647 NZD
View
A
Retailer 5
-
$3,725 NZD
View
Final sale: no returns
A
Retailer 6
-
$3,732 NZD
View
A
Retailer 7
-
$3,885 NZD
View
Retailer 8
-
$3,971 NZD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$4,036 NZD
View
A
Retailer 10
-
$4,223 NZD
View
B+
Retailer 11
-
$4,657 NZD
View
B+
Retailer 12
-
$4,686 NZD
View
B+
Retailer 13
-
$5,194 NZD
View
B
Retailer 14
-
$7,676 NZD
View
Most Expensive
B
NZ Jewellers
eb213151-6507-4408-8adc-17db97831ab7 · Nov 5
$9,314 NZD
$5,236 USD
View
14 more retailers have this diamond
Prices start from $3,392 NZDSave up to $5,922 NZD

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
$3,392 NZD