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Marquise|Natural|IGI

1.51ct K SI1 Marquise Natural Diamond

EX • K/SI1 • IGI 803629208

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803629208

Diamond specifications and retailer prices

From $4,131 CAD
As of November 6, 2026
Save $4,097 CAD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,229 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803629208. Listed at 15 retailers as of November 5, 2026, with prices from $4,131 to $8,229, a $4,097 spread on the same certified stone. NZ Jewellers lists it at $8,229. 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

1.51
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 803629208
Dimensions11.92 × 5.91 × 3.73 mm
L/W Ratio2.02
Girdle conditionFaceted
Top View
11.92 mm5.91 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629208
Side View
Table 61.0%Crown 34.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,229 CAD|Low: $4,131 CAD|High: $8,480 CAD|Avg: $5,498 CAD|-3.0%
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 2$4,131 CAD
Retailer 5$4,494 CAD
Retailer 8$4,514 CAD
Retailer 6$4,518 CAD
Retailer 14$4,564 CAD
Retailer 4$4,723 CAD
Retailer 9$4,854 CAD
Retailer 7$4,868 CAD
Retailer 10$4,872 CAD
Retailer 15$4,905 CAD
Retailer 3$5,200 CAD
Retailer 11$5,369 CAD
Retailer 12$5,764 CAD
Retailer 13$7,876 CAD
NZ Jewellers$8,229 CAD

30 data points across 15 retailers

15 retailers$4,131 CAD to $8,229 CAD

A
Cheapest Retailer
-
$4,131 CAD
A
Retailer 2
-
$4,494 CAD
View
A
Retailer 3
-
$4,514 CAD
View
A
Retailer 4
-
$4,518 CAD
View
B+
Retailer 5
-
$4,564 CAD
View
A
Retailer 6
-
$4,723 CAD
View
A
Retailer 7
-
$4,854 CAD
View
Retailer 8
-
$4,868 CAD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$4,872 CAD
View
A
Retailer 10
-
$4,905 CAD
View
A
Retailer 11
-
$5,200 CAD
View
A
Retailer 12
-
$5,369 CAD
View
A
Retailer 13
-
$5,764 CAD
View
B+
Retailer 14
-
$7,876 CAD
View
Most Expensive
B+
NZ Jewellers
ca66ec14-a278-4bb1-b408-71a51fcce9b5 · Nov 5
$8,229 CAD
$5,850 USD
View
14 more retailers have this diamond
Prices start from $4,131 CADSave up to $4,097 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
1.51ct Marquise
$4,131 CAD