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Marquise|Lab Grown|IGI

1.53ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG826651177

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826651177

Diamond specifications and retailer prices

From $332 CAD
$238 USD
As of October 30, 2026
Save $1,525 CAD (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,858 CAD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.53ct lab-grown marquise diamond

This 1.53ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826651177 or 826651177. Listed at 3 retailers as of October 26, 2026, with prices from $332 to $1,858, a $1,525 spread on the same certified stone. Brilliant Earth lists it at $1,858. 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

1.53
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826651177
Dimensions11.43 × 6.12 × 3.82 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.43 mm6.12 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826651177
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,858 CAD|Low: $332 CAD|High: $1,858 CAD|Avg: $912 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 27, 2026
Retailer 3$332 CAD
Retailer 4$634 CAD
Retailer 2$684 CAD
Brilliant Earth$1,858 CAD

33 data points across 4 retailers

3 retailers$332 CAD to $1,858 CAD

A
Cheapest Retailer
-
$332 CAD
$238 USD
Final sale: no returns
A
Retailer 2
-
$684 CAD
£386 GBP
View
Most Expensive
B
Brilliant Earth
21229727A · Oct 26
$1,858 CAD
$1,330 USD
View
2 more retailers have this diamond
Prices start from $332 CADSave up to $1,525 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
1.53ct Marquise
$332 CAD