Marquise|Lab Grown|IGI

3.09ct J VS1 Marquise Lab Grown Diamond

ID • J/VS1 • IGI LG816628428

Shape and cutting style on the report: Modified marquise step cut

Certificate IGI LG816628428

Diamond specifications and retailer prices

From $4,910 USD
£3,866 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $4,910 USD at MOH London
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 MOH London

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816628428 or 816628428. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.09
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816628428
Dimensions14.37 × 7.24 × 4.17 mm
L/W Ratio1.98
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.37 mm7.24 mm3.09 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816628428
Side View
Table 59.0%Crown 33.9°Girdle: Slightly ThickPavilion 33°Culet: NoneDepth 57.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $4,910 USD|Low: $1,600 USD|High: $4,910 USD|Avg: $2,690 USD|+10.2%
MOH London
Retailer 2
Retailer 3
October 29, 2026
Retailer 2$1,600 USD
Retailer 3$1,766 USD
MOH London$4,910 USD

7 data points across 3 retailers

1 retailer

B+
MOH London
LG816628428 · Oct 29
$4,910 USD
£3,866 GBP
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B+
3.09ct Marquise
$4,910 USD