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Marquise|Lab Grown|IGI

2.55ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG845671190

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845671190

Diamond specifications and retailer prices

From £372 GBP
$499 USD
As of November 1, 2026
Save £1,908 GBP (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,280 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 2.55ct lab-grown marquise diamond

This 2.55ct 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 LG845671190 or 845671190. Listed at 3 retailers as of November 1, 2026, with prices from £372 to £2,280, a £1,908 spread on the same certified stone. Rare Carat lists it at £2,280. 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

2.55
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845671190
Dimensions14.63 × 7.12 × 4.35 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.63 mm7.12 mm2.55 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845671190
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,280 GBP|Low: £372 GBP|High: £2,280 GBP|Avg: £1,194 GBP|+1.8%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£372 GBP
Retailer 2£703 GBP
Rare Carat£2,280 GBP

17 data points across 3 retailers

3 retailers£372 GBP to £2,280 GBP

A
Cheapest Retailer
-
£372 GBP
$499 USD
Final sale: no returns
A
Retailer 2
-
£703 GBP
View
Most Expensive
B
Rare Carat
845671190 · Nov 1
£2,280 GBP
$3,060 USD
View
2 more retailers have this diamond
Prices start from £372 GBPSave up to £1,908 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
2.55ct Marquise
£372 GBP