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Marquise|Lab Grown|IGI

1.66ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG789620136

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG789620136

Diamond specifications and retailer prices

From $1,370 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,370 USD 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 1.66ct lab-grown marquise diamond

This 1.66ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG789620136 or 789620136. 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789620136
Dimensions11.66 × 6.21 × 4.01 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.66 mm6.21 mm1.66 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789620136
Side View
Table 63.0%Crown 37.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.6%

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: $1,370 USD|Low: $524 USD|High: $2,080 USD|Avg: $1,336 USD
Brilliant Earth
Retailer 2
April 26, 2026
Retailer 2$524 USD
Brilliant Earth$1,370 USD

3 data points across 2 retailers

1 retailer

B
Brilliant Earth
18640764A · Nov 2
$1,370 USD
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B
1.66ct Marquise
$1,370 USD