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Radiant|Lab Grown|IGI

5.09ct E VS2 Radiant Lab Grown Diamond

EX • E/VS2 • IGI LG840639360

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

Certificate IGI LG840639360

Diamond specifications and retailer prices

From £656 GBP
$874 USD
As of October 29, 2026
Save £3,464 GBP (84%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,228 GBP at Brilliant Earth · As of October 11, 2026
View at Brilliant Earth

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840639360 or 840639360. Listed at 5 retailers as of October 29, 2026, with a 528% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.09
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840639360
Dimensions12.09 × 8.43 × 5.69 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.09 mm8.43 mm5.09 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840639360
Side View
Table 62.0%Crown 45.8°Girdle: MediumPavilion 37.8°Culet: NoneDepth 67.5%

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: Oct 29
Current: £656 GBP|Low: £656 GBP|High: £4,121 GBP|Avg: £1,957 GBP|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 1£656 GBP
Retailer 3£899 GBP
Retailer 4£1,061 GBP
Retailer 5£2,854 GBP
Retailer 2£4,120 GBP

12 data points across 5 retailers

5 retailers£656 GBP to £4,120 GBP

A
Cheapest Retailer
-
£656 GBP
$874 USD
Final sale: no returns
B+
Retailer 2
-
£899 GBP
$1,197 USD
View
Retailer 3
-
£2,854 GBP
$3,800 USD
View
Price last confirmed 22 days ago
B
Retailer 4
-
£4,120 GBP
$5,487 USD
View
Most Expensive
Brilliant Earth
21749217A · Oct 11
£4,228 GBP
$5,630 USD
View
Price last confirmed 18 days ago
4 more retailers have this diamond
Prices start from £656 GBPSave up to £3,464 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
5.09ct Radiant
£656 GBP