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Marquise|Natural|IGI

1.51ct H SI2 Marquise Natural Diamond

EX • H/SI2 • IGI 830653416

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 830653416

Diamond specifications and retailer prices

From $4,220 CAD
As of November 5, 2026
Save $4,243 CAD (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,463 CAD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 830653416. Listed at 7 retailers as of November 4, 2026, with prices from $4,220 to $8,463, a $4,243 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,463. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 830653416
Dimensions11.45 × 6.05 × 3.82 mm
L/W Ratio1.89
Girdle conditionFaceted
Top View
11.45 mm6.05 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830653416
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 40°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: Nov 5
Current: $5,947 CAD|Low: $4,214 CAD|High: $8,747 CAD|Avg: $6,019 CAD|-6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$4,220 CAD
Retailer 4$4,598 CAD
Retailer 6$5,093 CAD
Retailer 5$5,120 CAD
Retailer 3$5,792 CAD
Retailer 1$5,947 CAD
Wholesale Diamonds Direct$8,463 CAD

10 data points across 7 retailers

7 retailers$4,220 CAD to $8,463 CAD

A
Cheapest Retailer
-
$4,220 CAD
A
Retailer 2
-
$4,598 CAD
View
A
Retailer 3
-
$5,093 CAD
View
A
Retailer 4
-
$5,120 CAD
View
A
Retailer 5
-
$5,792 CAD
View
A
Retailer 6
-
$5,947 CAD
View
Most Expensive
B+
Wholesale Diamonds Direct
600305924 · Nov 4
$8,463 CAD
$6,017 USD
View
6 more retailers have this diamond
Prices start from $4,220 CADSave up to $4,243 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
$4,220 CAD