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Marquise|Lab Grown|IGI

3.38ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG797690887

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797690887

Diamond specifications and retailer prices

From $600 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: $600 USD 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 3.38ct lab-grown marquise diamond

This 3.38ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG797690887 or 797690887. Listed at a single retailer as of November 1, 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

3.38
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797690887
Dimensions16.56 × 7.75 × 4.66 mm
L/W Ratio2.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.56 mm7.75 mm3.38 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG797690887
Side View
Table 62.0%Crown 34°Girdle: MED-STKPavilion 40°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $600 USD|Low: $600 USD|High: $1,533 USD|Avg: $1,097 USD|-4.0%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Loose Grown Diamond$600 USD
Retailer 3$855 USD
Retailer 5$972 USD
Retailer 2$1,511 USD
Retailer 4$1,533 USD

2 data points across 5 retailers

1 retailer

B+
Loose Grown Diamond
797690887 · Nov 1
$600 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.

B+
3.38ct Marquise
$600 USD