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Marquise|Lab Grown|IGI

1.98ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG667456381

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG667456381

Diamond specifications and retailer prices

From $771 USD
£607 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $771 USD at Diamond Quarter
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 Diamond Quarter

About this 1.98ct lab-grown marquise diamond

This 1.98ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG667456381 or 667456381. 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

1.98
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667456381
Dimensions12.75 × 6.49 × 4.16 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
12.75 mm6.49 mm1.98 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667456381
Side View
Table 59.0%Crown 36.6°Girdle: MED-STKPavilion 41°CuletDepth 64.1%

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: $771 USD|Low: $771 USD|High: $771 USD|Avg: $771 USD
September 26, 2026
Diamond Quarter$771 USD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.98SI1ELG81BE8EN · Nov 2
$771 USD
£607 GBP
View

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B
1.98ct Marquise
$771 USD