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Marquise|Natural|IGI

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • IGI 803677663

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 803677663

Diamond specifications and retailer prices

From $4,546 CAD
SGD 4,398 SGD
As of October 31, 2026
Save $3,710 CAD (45%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,256 CAD at Wholesale Diamonds Direct · As of October 27, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803677663. Listed at 7 retailers as of October 27, 2026, with prices from $4,546 to $8,256, a $3,710 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,256. 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
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 803677663
Dimensions11.89 × 5.93 × 3.70 mm
L/W Ratio2.01
Girdle conditionFaceted
Top View
11.89 mm5.93 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803677663
Side View
Table 58.0%Crown 34.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.4%

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: Oct 31
Current: $5,959 CAD|Low: $3,947 CAD|High: $9,254 CAD|Avg: $6,049 CAD|-10.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
October 28, 2026
Retailer 7$3,947 CAD
Retailer 4$4,546 CAD
Retailer 3$4,769 CAD
Retailer 2$4,812 CAD
Retailer 5$5,777 CAD
Retailer 1$5,959 CAD
Retailer 8$6,137 CAD
Retailer 6$7,686 CAD
Wholesale Diamonds Direct$8,256 CAD

28 data points across 9 retailers

7 retailers$4,546 CAD to $8,256 CAD

A
Cheapest Retailer
-
$4,546 CAD
SGD 4,398 SGD
A
Retailer 2
-
$4,769 CAD
$3,414 USD
View
A
Retailer 3
-
$4,812 CAD
$3,445 USD
View
A
Retailer 4
-
$5,777 CAD
$4,136 USD
View
A
Retailer 5
-
$5,959 CAD
€4,063 EUR
View
A
Retailer 6
-
$6,137 CAD
$4,393 USD
View
Most Expensive
A
Wholesale Diamonds Direct
611240087 · Oct 27
$8,256 CAD
$5,910 USD
View
6 more retailers have this diamond
Prices start from $4,546 CADSave up to $3,710 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
$4,546 CAD