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Marquise|Lab Grown|IGI

3.09ct H VVS1 Marquise Lab Grown Diamond

EX • H/VVS1 • IGI LG842605137

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842605137

Diamond specifications and retailer prices

From £312 GBP
$418 USD
As of November 1, 2026
Save £2,005 GBP (87%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,317 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG842605137 or 842605137. Listed at 3 retailers as of October 28, 2026, with prices from £312 to £2,317, a £2,005 spread on the same certified stone. Rare Carat lists it at £2,317. 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

3.09
Carat
H
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842605137
Dimensions14.39 × 7.65 × 4.89 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
14.39 mm7.65 mm3.09 ctH / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842605137
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,317 GBP|Low: £312 GBP|High: £2,343 GBP|Avg: £1,216 GBP|-1.1%
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£312 GBP
Retailer 2£650 GBP
Rare Carat£2,317 GBP

24 data points across 3 retailers

3 retailers£312 GBP to £2,317 GBP

A
Cheapest Retailer
-
£312 GBP
$418 USD
Final sale: no returns
A
Retailer 2
-
£650 GBP
View
Most Expensive
B
Rare Carat
842605137 · Oct 28
£2,317 GBP
$3,105 USD
View
2 more retailers have this diamond
Prices start from £312 GBPSave up to £2,005 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
3.09ct Marquise
£312 GBP