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Marquise|Lab Grown|IGI

3.57ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG596320625

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG596320625

Diamond specifications and retailer prices

From $4,010 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $4,010 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 3.57ct lab-grown marquise diamond

This 3.57ct 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 LG596320625 or 596320625. 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

3.57
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG596320625
Dimensions16.16 × 8.03 × 4.95 mm
L/W Ratio2.01
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
16.16 mm8.03 mm3.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG596320625
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

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: $4,010 USD|Low: $4,010 USD|High: $4,010 USD|Avg: $4,010 USD
December 30, 2025
Brilliant Earth$4,010 USD

4 data points across 1 retailer

1 retailer

B
Brilliant Earth
7970187B · Nov 2
$4,010 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
3.57ct Marquise
$4,010 USD