CaratHunter
Plans
Marquise|Lab Grown|IGI

1.50ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG756506359

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG756506359

Diamond specifications and retailer prices

From $443 CAD
$317 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $443 CAD at Loose Grown Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Loose Grown Diamond

About this 1.5ct lab-grown marquise diamond

This 1.5ct 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 LG756506359 or 756506359. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.50
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756506359
Dimensions12.42 × 5.83 × 3.53 mm
L/W Ratio2.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.42 mm5.83 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756506359
Side View
Table 61.0%Crown 31.5°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $443 CAD|Low: $443 CAD|High: $1,291 CAD|Avg: $882 CAD|-5.1%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 25, 2026
Loose Grown Diamond$443 CAD
Retailer 2$706 CAD
Retailer 4$842 CAD
Retailer 3$930 CAD
Retailer 6$1,066 CAD
Retailer 5$1,291 CAD

2 data points across 6 retailers

1 retailer

B+
Loose Grown Diamond
756506359 · Oct 30
$443 CAD
$317 USD
View

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.

B+
1.50ct Marquise
$443 CAD