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Marquise|Natural|IGI

1.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 837697198

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 837697198

Diamond specifications and retailer prices

From $5,023 CAD
$3,596 USD
As of October 31, 2026
Save $4,921 CAD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,945 CAD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 837697198. Listed at 13 retailers as of October 30, 2026, with prices from $5,023 to $9,945, a $4,921 spread on the same certified stone. NZ Jewellers lists it at $9,945. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.1°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 837697198
Dimensions11.45 × 5.96 × 3.76 mm
L/W Ratio1.92
Girdle conditionFaceted
Top View
11.45 mm5.96 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 837697198
Side View
Table 61.0%Crown 38.1°Girdle: THK-VTKPavilion 40.3°Culet: NoneDepth 63.1%

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: Oct 31
Current: $9,945 CAD|Low: $4,927 CAD|High: $10,147 CAD|Avg: $6,432 CAD|-2.0%
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
November 1, 2026
Retailer 10$5,023 CAD
Retailer 3$5,269 CAD
Retailer 9$5,356 CAD
Retailer 6$5,568 CAD
Retailer 11$5,658 CAD
Retailer 7$5,708 CAD
Retailer 4$5,824 CAD
Retailer 5$5,824 CAD
Retailer 2$5,914 CAD
Retailer 13$6,273 CAD
Retailer 12$6,586 CAD
Retailer 8$9,546 CAD
NZ Jewellers$9,945 CAD

29 data points across 13 retailers

13 retailers$5,023 CAD to $9,945 CAD

A
Cheapest Retailer
-
$5,023 CAD
$3,596 USD
A
Retailer 2
-
$5,269 CAD
$3,772 USD
View
Final sale: no returns
B+
Retailer 3
-
$5,356 CAD
$3,834 USD
View
A
Retailer 4
-
$5,568 CAD
£3,139 GBP
View
B+
Retailer 5
-
$5,658 CAD
$4,051 USD
View
A
Retailer 6
-
$5,708 CAD
$4,086 USD
View
B+
Retailer 7
-
$5,824 CAD
$4,169 USD
View
Retailer 8
-
$5,824 CAD
$4,169 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$5,914 CAD
$4,234 USD
View
B+
Retailer 10
-
$6,273 CAD
€4,277 EUR
View
B+
Retailer 11
-
$6,586 CAD
$4,715 USD
View
B+
Retailer 12
-
$9,546 CAD
£5,381 GBP
View
Most Expensive
B+
NZ Jewellers
c6dbeeb5-510e-4935-8301-94ee64fb998d · Oct 30
$9,945 CAD
$7,119 USD
View
12 more retailers have this diamond
Prices start from $5,023 CADSave up to $4,921 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
$5,023 CAD