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Marquise|Lab Grown|IGI

2.78ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG770689460

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG770689460

Diamond specifications and retailer prices

From £2,250 GBP
$3,020 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £2,250 GBP at Brilliant Earth
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 Brilliant Earth

About this 2.78ct lab-grown marquise diamond

This 2.78ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770689460 or 770689460. Listed at a single retailer as of October 31, 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

2.78
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770689460
Dimensions14.60 × 7.41 × 4.54 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.60 mm7.41 mm2.78 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770689460
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £2,250 GBP|Low: £510 GBP|High: £2,250 GBP|Avg: £895 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
April 14, 2026
Retailer 5£555 GBP
Retailer 3£675 GBP
Retailer 2£798 GBP
Retailer 4£849 GBP
Retailer 6£1,142 GBP
Brilliant Earth£2,250 GBP

14 data points across 6 retailers

1 retailer

B
Brilliant Earth
17954951Y · Oct 31
£2,250 GBP
$3,020 USD
View

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B
2.78ct Marquise
£2,250 GBP