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Radiant|Lab Grown|IGI

4.01ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG623440645

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG623440645

Diamond specifications and retailer prices

From £1,402 GBP
As of October 29, 2026
Save £1,426 GBP (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,829 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.01ct lab-grown radiant diamond

This 4.01ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG623440645 or 623440645. Listed at 5 retailers as of October 29, 2026, with prices from £1,402 to £2,829, a £1,426 spread on the same certified stone. Brilliant Earth lists it at £2,829. 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

4.01
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623440645
Dimensions10.56 × 7.79 × 5.45 mm
L/W Ratio1.36
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
10.56 mm7.79 mm4.01 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623440645
Side View
Table 68.0%Crown 33.6°Girdle: Slightly ThickPavilion 37.2°Culet: NoneDepth 70.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,829 GBP|Low: £287 GBP|High: £2,829 GBP|Avg: £1,288 GBP
Brilliant Earth
Retailer 2
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Retailer 4
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Retailer 7
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Retailer 15
September 23, 2026
Retailer 15£287 GBP
Retailer 9£448 GBP
Retailer 10£599 GBP
Retailer 8£721 GBP
Retailer 5£777 GBP
Retailer 11£993 GBP
Retailer 3£1,134 GBP
Retailer 7£1,445 GBP
Retailer 13£1,455 GBP
Retailer 14£1,490 GBP
Retailer 2£1,596 GBP
Retailer 12£1,665 GBP
Retailer 4£1,855 GBP
Retailer 6£2,053 GBP
Brilliant Earth£2,829 GBP

2 data points across 15 retailers

5 retailers£1,402 GBP to £2,829 GBP

Retailer 1
-
£1,280 GBP
HK$13,400 HKD
Price last confirmed 57 days ago
B+
Retailer 2
-
£1,402 GBP
View
B+
Retailer 3
-
£1,596 GBP
$2,139 USD
View
Retailer 4
-
£1,665 GBP
$2,230 USD
View
Price last confirmed 52 days ago
Most Expensive
B
Brilliant Earth
16056950A · Oct 29
£2,829 GBP
$3,790 USD
View
4 more retailers have this diamond
Prices start from £1,402 GBPSave up to £1,426 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.

B+
4.01ct Radiant
£1,402 GBP