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Oval|Lab Grown|IGI

4.20ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG606323849

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG606323849

Diamond specifications and retailer prices

From £1,375 GBP
$1,842 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £1,375 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 oval diamond

This 4.2ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG606323849 or 606323849. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.20
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG606323849
Dimensions13.04 × 9.02 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.04 mm9.02 mm4.20 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG606323849
Side View
Table 61.0%Crown 34.2°Girdle: 0.0Pavilion 39.8°Culet: NoneDepth 60.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £1,375 GBP|Low: £1,317 GBP|High: £1,687 GBP|Avg: £1,460 GBP|-18.5%
September 23, 2026
B2C Jewels£1,375 GBP

3 data points across 1 retailer

1 retailer

B
B2C Jewels
21989857 · Oct 30
£1,375 GBP
$1,842 USD
View

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B
4.20ct Oval
£1,375 GBP