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Marquise|Lab Grown|IGI

4.90ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG849621092

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG849621092

Diamond specifications and retailer prices

From $1,395 USD
£1,098 GBP
As of November 2, 2026
Save $3,805 USD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,200 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.9ct lab-grown marquise diamond

This 4.9ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG849621092 or 849621092. Listed at 3 retailers as of November 2, 2026, with prices from $1,395 to $5,200, a $3,805 spread on the same certified stone. Brilliant Earth lists it at $5,200. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.90
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849621092
Dimensions17.47 × 8.88 × 5.60 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.47 mm8.88 mm4.90 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849621092
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,200 USD|Low: $1,391 USD|High: $5,200 USD|Avg: $3,323 USD
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 2$1,395 USD
Retailer 3$4,940 USD
Brilliant Earth$5,200 USD

6 data points across 3 retailers

3 retailers$1,395 USD to $5,200 USD

A
Cheapest Retailer
-
$1,395 USD
£1,098 GBP
B
Retailer 2
-
$4,940 USD
View
Most Expensive
B
Brilliant Earth
22344989A · Nov 2
$5,200 USD
View
2 more retailers have this diamond
Prices start from $1,395 USDSave up to $3,805 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
4.90ct Marquise
$1,395 USD