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Marquise|Lab Grown|IGI

3.05ct G VVS1 Marquise Lab Grown Diamond

EX • G/VVS1 • IGI LG840655662

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840655662

Diamond specifications and retailer prices

From £333 GBP
$447 USD
As of November 1, 2026
Save £2,148 GBP (87%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,481 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840655662 or 840655662. Listed at 3 retailers as of October 28, 2026, with prices from £333 to £2,481, a £2,148 spread on the same certified stone. Rare Carat lists it at £2,481. 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

3.05
Carat
G
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840655662
Dimensions14.31 × 7.63 × 4.81 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.31 mm7.63 mm3.05 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840655662
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,481 GBP|Low: £333 GBP|High: £2,508 GBP|Avg: £1,306 GBP|-1.0%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£333 GBP
Retailer 2£633 GBP
Rare Carat£2,481 GBP

29 data points across 3 retailers

3 retailers£333 GBP to £2,481 GBP

A
Cheapest Retailer
-
£333 GBP
$447 USD
Final sale: no returns
A
Retailer 2
-
£633 GBP
View
Most Expensive
B
Rare Carat
840655662 · Oct 28
£2,481 GBP
$3,330 USD
View
2 more retailers have this diamond
Prices start from £333 GBPSave up to £2,148 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
3.05ct Marquise
£333 GBP