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Marquise|Lab Grown|IGI

3.49ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG598343676

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG598343676

Diamond specifications and retailer prices

From $4,890 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $4,890 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 3.49ct lab-grown marquise diamond

This 3.49ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598343676 or 598343676. 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

3.49
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598343676
Dimensions16.22 × 7.98 × 4.80 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.22 mm7.98 mm3.49 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598343676
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: $4,890 USD|Low: $4,890 USD|High: $4,890 USD|Avg: $4,890 USD
December 28, 2025
Brilliant Earth$4,890 USD

3 data points across 1 retailer

1 retailer

C
Brilliant Earth
8074542B · Nov 2
$4,890 USD
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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.

C
3.49ct Marquise
$4,890 USD