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Marquise|Lab Grown|IGI

1.59ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG758532218

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG758532218

Diamond specifications and retailer prices

From $1,845 CAD
$1,320 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,845 CAD at Brilliant Earth
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 Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG758532218 or 758532218. Listed at a single retailer as of November 2, 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

1.59
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758532218
Dimensions12.32 × 6.09 × 3.78 mm
L/W Ratio2.02
Girdle conditionFaceted
Top View
12.32 mm6.09 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758532218
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $1,845 CAD|Low: $383 CAD|High: $1,984 CAD|Avg: $1,200 CAD|+3.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
April 14, 2026
Retailer 6$383 CAD
Retailer 5$747 CAD
Retailer 2$1,056 CAD
Retailer 4$1,273 CAD
Retailer 7$1,336 CAD
Retailer 3$1,481 CAD
Brilliant Earth$1,845 CAD

28 data points across 7 retailers

1 retailer

B
Brilliant Earth
17059857A · Nov 2
$1,845 CAD
$1,320 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
1.59ct Marquise
$1,845 CAD