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Marquise|Lab Grown|IGI

2.54ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG840640666

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840640666

Diamond specifications and retailer prices

From £370 GBP
$497 USD
As of November 1, 2026
Save £1,902 GBP (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,273 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 2.54ct lab-grown marquise diamond

This 2.54ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840640666 or 840640666. Listed at 3 retailers as of November 1, 2026, with prices from £370 to £2,273, a £1,902 spread on the same certified stone. Rare Carat lists it at £2,273. 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

2.54
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840640666
Dimensions14.15 × 7.11 × 4.47 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.15 mm7.11 mm2.54 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840640666
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,273 GBP|Low: £370 GBP|High: £2,273 GBP|Avg: £1,320 GBP|+0.2%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£370 GBP
Retailer 2£700 GBP
Rare Carat£2,273 GBP

26 data points across 3 retailers

3 retailers£370 GBP to £2,273 GBP

A
Cheapest Retailer
-
£370 GBP
$497 USD
Final sale: no returns
A
Retailer 2
-
£700 GBP
View
Most Expensive
B
Rare Carat
840640666 · Nov 1
£2,273 GBP
$3,050 USD
View
2 more retailers have this diamond
Prices start from £370 GBPSave up to £1,902 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
2.54ct Marquise
£370 GBP