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Marquise|Lab Grown|IGI

4.20ct H VS2 Marquise Lab Grown Diamond

EX • H/VS2 • IGI LG667452058

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG667452058

Diamond specifications and retailer prices

From £915 GBP
$1,226 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: £915 GBP at B2C Jewels
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 B2C Jewels

About this 4.2ct lab-grown marquise diamond

This 4.2ct lab-grown marquise sits in the three to five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG667452058 or 667452058. Listed at a single retailer as of November 1, 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

4.20
Carat
H
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667452058
Dimensions16.74 × 8.31 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.74 mm8.31 mm4.20 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667452058
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £915 GBP|Low: £879 GBP|High: £1,460 GBP|Avg: £1,093 GBP|-37.3%
September 23, 2026
B2C Jewels£915 GBP

4 data points across 1 retailer

1 retailer

B+
B2C Jewels
28886683 · Nov 1
£915 GBP
$1,226 USD
View

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B+
4.20ct Marquise
£915 GBP