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Round|Natural|IGI

1.30ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 644482852

Shape and cutting style on the report: Round brilliant

Certificate IGI 644482852

Diamond specifications and retailer prices

From $2,828 NZD
As of November 1, 2026
Save $1,530 NZD (35%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,847 NZD at NZ Jewellers · As of September 26, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 644482852. Listed at 13 retailers as of November 1, 2026, with a 54% 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

1.30
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 644482852
Dimensions7.00 × 7.08 × 4.27 mm
L/W Ratio1.01
Girdle conditionPARTLY FACETED
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.00 mm7.08 mm1.30 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 644482852
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.6%

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 1
Current: $3,163 NZD|Low: $2,828 NZD|High: $5,230 NZD|Avg: $3,576 NZD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$2,828 NZD
Retailer 7$2,930 NZD
Retailer 10$3,126 NZD
Retailer 1$3,163 NZD
Retailer 9$3,234 NZD
Retailer 6$3,318 NZD
Retailer 8$3,460 NZD
Retailer 4$3,926 NZD
Retailer 3$4,358 NZD
Retailer 2$5,230 NZD

40 data points across 10 retailers

13 retailers$2,828 NZD to $4,358 NZD

A
Cheapest Retailer
-
$2,828 NZD
A
Retailer 2
-
$2,930 NZD
View
A
Retailer 3
-
$3,163 NZD
View
Retailer 4
-
$3,216 NZD
View
Price last confirmed 29 days ago
Retailer 5
-
$3,216 NZD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$3,234 NZD
View
B+
Retailer 7
-
$3,318 NZD
View
Retailer 8
-
$3,366 NZD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$3,460 NZD
View
Retailer 10
-
$3,713 NZD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$3,926 NZD
View
B
Retailer 12
-
$4,358 NZD
View
Most Expensive
NZ Jewellers
a750e670-a474-4328-8b35-0c131e10cc91 · Sep 26
$7,847 NZD
$4,411 USD
View
Price last confirmed 40 days ago
12 more retailers have this diamond
Prices start from $2,828 NZDSave up to $1,530 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
$2,828 NZD