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Round|Natural|IGI

1.50ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 550250291

Shape and cutting style on the report: Round brilliant

Certificate IGI 550250291

Diamond specifications and retailer prices

From $2,134 CAD
As of November 5, 2026
Save $4,451 CAD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,585 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 550250291. Listed at 13 retailers as of November 5, 2026, with prices from $2,134 to $6,585, a $4,451 spread on the same certified stone. NZ Jewellers lists it at $6,585. 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

1.50
Carat
M
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 550250291
Dimensions7.39 × 7.43 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.43 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 550250291
Side View
Table 61.5%Crown 32.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.7%

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 5
Current: $2,940 CAD|Low: $2,134 CAD|High: $3,698 CAD|Avg: $2,848 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$2,134 CAD
Retailer 5$2,440 CAD
Retailer 7$2,700 CAD
Retailer 6$2,758 CAD
Retailer 1$2,940 CAD
Retailer 3$3,295 CAD
Retailer 4$3,663 CAD

39 data points across 7 retailers

13 retailers$2,134 CAD to $6,585 CAD

A
Cheapest Retailer
-
$2,134 CAD
B+
Retailer 2
-
$2,440 CAD
View
B+
Retailer 3
-
$2,631 CAD
View
B+
Retailer 4
-
$2,700 CAD
View
Retailer 5
-
$2,700 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,758 CAD
View
B+
Retailer 7
-
$2,825 CAD
View
B+
Retailer 8
-
$2,892 CAD
View
A
Retailer 9
-
$2,940 CAD
View
B+
Retailer 10
-
$3,116 CAD
View
B+
Retailer 11
-
$3,295 CAD
View
B+
Retailer 12
-
$3,663 CAD
View
Most Expensive
B
NZ Jewellers
8beecb8e-053c-42f6-8142-5f90efbb540c · Nov 5
$6,585 CAD
$4,715 USD
View
12 more retailers have this diamond
Prices start from $2,134 CADSave up to $4,451 CAD

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
1.50ct Round
$2,134 CAD