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2.50ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 670479676

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479676

Diamond specifications and retailer prices

From $13,089 NZD
As of November 4, 2026
Save $4,302 NZD (25%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $17,391 NZD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479676. Listed at 6 retailers as of November 4, 2026, with prices from $13,089 to $17,391, a $4,302 spread on the same certified stone. Cape Diamonds lists it at $17,391. 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

2.50
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 670479676
Dimensions8.53 × 8.59 × 5.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.53 mm8.59 mm2.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479676
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

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 4
Current: $17,391 NZD|Low: $9,699 NZD|High: $24,465 NZD|Avg: $15,607 NZD|+2.3%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$9,699 NZD
Retailer 4$13,089 NZD
Retailer 7$13,929 NZD
Retailer 2$15,147 NZD
Retailer 5$15,471 NZD
Retailer 3$15,605 NZD
Cape Diamonds$17,391 NZD
Retailer 6$24,465 NZD

39 data points across 8 retailers

6 retailers$13,089 NZD to $17,391 NZD

A
Cheapest Retailer
-
$13,089 NZD
B+
Retailer 2
-
$13,929 NZD
View
B+
Retailer 3
-
$15,147 NZD
View
B+
Retailer 4
-
$15,471 NZD
View
B+
Retailer 5
-
$15,605 NZD
View
Most Expensive
B+
Cape Diamonds
cert_670479676 · Nov 5
$17,391 NZD
ZAR 157,937 ZAR
View
5 more retailers have this diamond
Prices start from $13,089 NZDSave up to $4,302 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
2.50ct Round
$13,089 NZD