CaratHunter
Plans
Round|Lab Grown|IGI

4.08ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG839672618

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839672618

Diamond specifications and retailer prices

From £437 GBP
$585 USD
As of October 25, 2026
Save £1,168 GBP (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,605 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 4.08ct lab-grown round diamond

This 4.08ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839672618 or 839672618. Listed at 17 retailers as of October 25, 2026, with prices from £437 to £1,605, a £1,168 spread on the same certified stone. MOH London lists it at £1,605. 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

4.08
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839672618
Dimensions10.41 × 10.49 × 6.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.41 mm10.49 mm4.08 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839672618
Side View
Table 58.0%Crown 33.3°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.2%

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 25
Current: £1,605 GBP|Low: £338 GBP|High: £1,622 GBP|Avg: £861 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 27, 2026
Retailer 14£352 GBP
Retailer 17£394 GBP
Retailer 3£437 GBP
Retailer 4£437 GBP
Retailer 16£487 GBP
Retailer 12£586 GBP
Retailer 15£662 GBP
Retailer 6£688 GBP
Retailer 2£730 GBP
Retailer 13£817 GBP
Retailer 10£860 GBP
Retailer 11£1,172 GBP
Retailer 5£1,226 GBP
Retailer 8£1,402 GBP
Retailer 9£1,411 GBP
Retailer 7£1,425 GBP
MOH London£1,605 GBP

21 data points across 17 retailers

17 retailers£437 GBP to £1,605 GBP

Retailer 1
-
£352 GBP
$471 USD
Price last confirmed 9 days ago
Retailer 2
-
£394 GBP
$528 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£437 GBP
$585 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£437 GBP
$585 USD
View
A
Retailer 5
-
£487 GBP
HK$5,100 HKD
View
B+
Retailer 6
-
£586 GBP
$785 USD
View
Retailer 7
-
£662 GBP
View
Price last confirmed 25 days ago
A
Retailer 8
-
£688 GBP
$922 USD
View
A
Retailer 9
-
£730 GBP
€932 EUR
View
Retailer 10
-
£817 GBP
$1,095 USD
View
Price last confirmed 5 days ago
Retailer 11
-
£860 GBP
ZAR 18,626 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£1,172 GBP
$1,571 USD
View
B+
Retailer 13
-
£1,226 GBP
$1,643 USD
View
Retailer 14
-
£1,402 GBP
$1,879 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
£1,411 GBP
SGD 2,554 SGD
View
B
Retailer 16
-
£1,425 GBP
$1,909 USD
View
Most Expensive
B
MOH London
LG839672618 · Oct 26
£1,605 GBP
View
16 more retailers have this diamond
Prices start from £437 GBPSave up to £1,168 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
4.08ct Round
£437 GBP