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Marquise|Lab Grown|IGI

3.05ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG844648567

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844648567

Diamond specifications and retailer prices

From $368 USD
As of November 1, 2026
Save $2,352 USD (86%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,720 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.05ct lab-grown marquise diamond

This 3.05ct 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 LG844648567 or 844648567. Listed at 3 retailers as of November 1, 2026, with prices from $368 to $2,720, a $2,352 spread on the same certified stone. Brilliant Earth lists it at $2,720. 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

3.05
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844648567
Dimensions14.98 × 7.45 × 4.82 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.98 mm7.45 mm3.05 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844648567
Side View
Table 59.0%Crown 36.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 64.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,720 USD|Low: $368 USD|High: $2,720 USD|Avg: $1,397 USD
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$368 USD
Retailer 2$763 USD
Brilliant Earth$2,720 USD

20 data points across 3 retailers

3 retailers$368 USD to $2,720 USD

A
Cheapest Retailer
-
$368 USD
Final sale: no returns
A
Retailer 2
-
$763 USD
£601 GBP
View
Most Expensive
B
Brilliant Earth
21830503A · Nov 2
$2,720 USD
View
2 more retailers have this diamond
Prices start from $368 USDSave up to $2,352 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
3.05ct Marquise
$368 USD