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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1399808576

Certificate GIA 1399808576

Diamond specifications and retailer prices

From $8,031 NZD
As of November 6, 2026
Save $14,487 NZD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $22,518 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1399808576. Listed at 10 retailers as of November 5, 2026, with prices from $8,031 to $22,518, a $14,487 spread on the same certified stone. Diamond Quarter lists it at $22,518. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1399808576
Dimensions7.02 × 6.98 × 4.30 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
7.02 mm6.98 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1399808576
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.6%

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: $11,594 NZD|Low: $8,031 NZD|High: $11,853 NZD|Avg: $10,043 NZD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6$8,031 NZD
Retailer 7$8,197 NZD
Retailer 8$8,749 NZD
Retailer 4$10,080 NZD
Retailer 3$10,751 NZD
Retailer 5$10,751 NZD
Retailer 9$11,112 NZD
Retailer 2$11,565 NZD
Retailer 1$11,594 NZD

40 data points across 9 retailers

10 retailers$8,031 NZD to $22,518 NZD

A
Cheapest Retailer
-
$8,031 NZD
A
Retailer 2
-
$8,197 NZD
View
A
Retailer 3
-
$8,749 NZD
View
B+
Retailer 4
-
$10,080 NZD
View
B+
Retailer 5
-
$10,751 NZD
View
B+
Retailer 6
-
$10,751 NZD
View
B+
Retailer 7
-
$11,112 NZD
View
B+
Retailer 8
-
$11,565 NZD
View
B+
Retailer 9
-
$11,594 NZD
View
Most Expensive
B
Diamond Quarter
1.3SI2D13765D26N · Nov 5
$22,518 NZD
£9,829 GBP
View
9 more retailers have this diamond
Prices start from $8,031 NZDSave up to $14,487 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
$8,031 NZD