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Marquise|Lab Grown|IGI

3.03ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG844676294

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844676294

Diamond specifications and retailer prices

From $376 USD
As of November 1, 2026
Save $2,334 USD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,710 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.03ct lab-grown marquise diamond

This 3.03ct 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 LG844676294 or 844676294. Listed at 4 retailers as of November 1, 2026, with prices from $376 to $2,710, a $2,334 spread on the same certified stone. Brilliant Earth lists it at $2,710. 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

3.03
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844676294
Dimensions15.52 × 7.39 × 4.62 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.52 mm7.39 mm3.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844676294
Side View
Table 61.0%Crown 34.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,710 USD|Low: $376 USD|High: $2,710 USD|Avg: $1,508 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$376 USD
Retailer 2$774 USD
Retailer 4$2,085 USD
Brilliant Earth$2,710 USD

16 data points across 4 retailers

4 retailers$376 USD to $2,710 USD

A
Cheapest Retailer
-
$376 USD
Final sale: no returns
A
Retailer 2
-
$774 USD
£609 GBP
View
B
Retailer 3
-
$2,085 USD
View
Most Expensive
B
Brilliant Earth
22178118A · Nov 2
$2,710 USD
View
3 more retailers have this diamond
Prices start from $376 USDSave up to $2,334 USD

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.

A
3.03ct Marquise
$376 USD