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Princess|Lab Grown|IGI

4.09ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG643446454

Shape and cutting style on the report: Princess cut

Certificate IGI LG643446454

Diamond specifications and retailer prices

From £399 GBP
$534 USD
As of October 30, 2026
Save £1,668 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,066 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 4.09ct lab-grown princess diamond

This 4.09ct lab-grown princess sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG643446454 or 643446454. Listed at 23 retailers as of October 26, 2026, with prices from £399 to £2,066, a £1,668 spread on the same certified stone. MOH London lists it at £2,066. 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

4.09
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.5°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643446454
Dimensions8.51 × 8.51 × 6.11 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm8.51 mm4.09 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643446454
Side View
Table 70.0%Crown 50.5°Girdle: Slightly ThickPavilion 37.8°Culet: NoneDepth 71.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,066 GBP|Low: £383 GBP|High: £2,089 GBP|Avg: £912 GBP|-1.0%
MOH London
Retailer 2
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Retailer 19
November 1, 2026
Retailer 18£399 GBP
Retailer 3£446 GBP
Retailer 10£446 GBP
Retailer 17£470 GBP
Retailer 7£494 GBP
Retailer 9£494 GBP
Retailer 19£597 GBP
Retailer 16£663 GBP
Retailer 14£722 GBP
Retailer 2£770 GBP
Retailer 11£790 GBP
Retailer 15£984 GBP
Retailer 13£991 GBP
Retailer 12£1,088 GBP
Retailer 8£1,300 GBP
Retailer 5£1,592 GBP
Retailer 4£1,608 GBP
Retailer 6£1,877 GBP
MOH London£2,066 GBP

42 data points across 19 retailers

23 retailers£399 GBP to £2,066 GBP

A
Cheapest Retailer
-
£399 GBP
$534 USD
A
Retailer 2
-
£446 GBP
$598 USD
View
A
Retailer 3
-
£446 GBP
$598 USD
View
Final sale: no returns
Retailer 4
-
£470 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
£494 GBP
$662 USD
View
Retailer 6
-
£494 GBP
$662 USD
View
Price last confirmed 16 days ago
A
Retailer 7
-
£597 GBP
$800 USD
View
B+
Retailer 8
-
£663 GBP
$888 USD
View
A
Retailer 9
-
£722 GBP
€921 EUR
View
A
Retailer 10
-
£770 GBP
View
A
Retailer 11
-
£790 GBP
$1,059 USD
View
A
Retailer 12
-
£984 GBP
ZAR 21,297 ZAR
View
A
Retailer 13
-
£991 GBP
A$2,042 AUD
View
B+
Retailer 14
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£1,070 GBP
$1,434 USD
View
B+
Retailer 15
-
£1,088 GBP
$1,458 USD
View
B+
Retailer 16
-
£1,101 GBP
$1,476 USD
View
B+
Retailer 17
-
£1,300 GBP
$1,742 USD
View
B+
Retailer 18
-
£1,445 GBP
View
B+
Retailer 19
-
£1,592 GBP
$2,133 USD
View
B+
Retailer 20
-
£1,606 GBP
$2,152 USD
View
B+
Retailer 21
-
£1,608 GBP
$2,155 USD
View
Retailer 22
-
£1,877 GBP
$2,515 USD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG643446454 · Oct 26
£2,066 GBP
View
22 more retailers have this diamond
Prices start from £399 GBPSave up to £1,668 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
4.09ct Princess
£399 GBP