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Radiant|Lab Grown|IGI

4.03ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG844635539

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

Certificate IGI LG844635539

Diamond specifications and retailer prices

From £496 GBP
As of November 2, 2026
Save £4,556 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,053 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.03ct lab-grown radiant diamond

This 4.03ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844635539 or 844635539. Listed at 11 retailers as of October 31, 2026, with prices from £496 to £5,053, a £4,556 spread on the same certified stone. Brilliant Earth lists it at £5,053. 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

4.03
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844635539
Dimensions9.07 × 8.78 × 5.65 mm
L/W Ratio1.03
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.07 mm8.78 mm4.03 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844635539
Side View
Table 65.0%Crown 40°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £5,053 GBP|Low: £496 GBP|High: £5,493 GBP|Avg: £1,708 GBP|-8.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4£496 GBP
Retailer 8£690 GBP
Retailer 10£813 GBP
Retailer 7£902 GBP
Retailer 2£908 GBP
Retailer 9£1,184 GBP
Retailer 6£1,794 GBP
Retailer 11£1,919 GBP
Retailer 3£2,190 GBP
Retailer 5£2,343 GBP
Brilliant Earth£5,053 GBP

18 data points across 11 retailers

11 retailers£496 GBP to £5,053 GBP

A
Cheapest Retailer
-
£496 GBP
A
Retailer 2
-
£690 GBP
$925 USD
View
A
Retailer 3
-
£813 GBP
$1,090 USD
View
A
Retailer 4
-
£902 GBP
€1,151 EUR
View
A
Retailer 5
-
£908 GBP
$1,217 USD
View
A
Retailer 6
-
£1,184 GBP
ZAR 25,620 ZAR
View
B+
Retailer 7
-
£1,794 GBP
$2,404 USD
View
B+
Retailer 8
-
£1,919 GBP
$2,571 USD
View
Retailer 9
-
£2,190 GBP
$2,935 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
£2,343 GBP
View
Most Expensive
B
Brilliant Earth
22154143A · Oct 31
£5,053 GBP
$6,770 USD
View
10 more retailers have this diamond
Prices start from £496 GBPSave up to £4,556 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
4.03ct Radiant
£496 GBP