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Marquise|Lab Grown|IGI

3.90ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG844626488

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844626488

Diamond specifications and retailer prices

From £396 GBP
$531 USD
As of November 1, 2026
Save £2,626 GBP (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,023 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.9ct lab-grown marquise diamond

This 3.9ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG844626488 or 844626488. Listed at 4 retailers as of October 26, 2026, with prices from £396 to £3,023, a £2,626 spread on the same certified stone. Brilliant Earth lists it at £3,023. 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

3.90
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844626488
Dimensions16.28 × 8.25 × 5.16 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
16.28 mm8.25 mm3.90 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844626488
Side View
Table 59.0%Crown 36.3°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: £3,023 GBP|Low: £396 GBP|High: £3,023 GBP|Avg: £1,651 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3£396 GBP
Retailer 2£752 GBP
Retailer 4£2,276 GBP
Brilliant Earth£3,023 GBP

16 data points across 4 retailers

4 retailers£396 GBP to £3,023 GBP

A
Cheapest Retailer
-
£396 GBP
$531 USD
Final sale: no returns
A
Retailer 2
-
£752 GBP
View
B
Retailer 3
-
£2,276 GBP
$3,050 USD
View
Most Expensive
B
Brilliant Earth
21830298A · Oct 26
£3,023 GBP
$4,050 USD
View
3 more retailers have this diamond
Prices start from £396 GBPSave up to £2,626 GBP

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
3.90ct Marquise
£396 GBP