Princess|Lab Grown|IGI

4.01ct H I1 Princess Lab Grown Diamond

ID • H/I1 • IGI LG639487036

Shape and cutting style on the report: Princess cut

Certificate IGI LG639487036

Diamond specifications and retailer prices

From £179 GBP
$240 USD
As of October 28, 2026
Save £1,027 GBP (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,206 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 4.01ct lab-grown princess diamond

This 4.01ct lab-grown princess sits in the three to five carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG639487036 or 639487036. Listed at 10 retailers as of October 26, 2026, with prices from £179 to £1,206, a £1,027 spread on the same certified stone. MOH London lists it at £1,206. 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
H
Colour
I1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle50°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639487036
Dimensions8.78 × 8.49 × 6.02 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.78 mm8.49 mm4.01 ctH / I1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639487036
Side View
Table 73.0%Crown 50°Girdle: MediumPavilion 37.9°Culet: NoneDepth 70.9%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: £1,206 GBP|Low: £179 GBP|High: £1,867 GBP|Avg: £613 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8£179 GBP
Retailer 7£243 GBP
Retailer 5£281 GBP
Retailer 9£301 GBP
Retailer 3£334 GBP
Retailer 12£363 GBP
Retailer 2£469 GBP
Retailer 11£567 GBP
Retailer 10£741 GBP
Retailer 6£966 GBP
MOH London£1,206 GBP
Retailer 4£1,867 GBP

24 data points across 12 retailers

10 retailers£179 GBP to £1,206 GBP

B+
Cheapest Retailer
-
£179 GBP
$240 USD
B+
Retailer 2
-
£243 GBP
$325 USD
View
Retailer 3
-
£281 GBP
$377 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£301 GBP
$403 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£334 GBP
HK$3,500 HKD
View
B+
Retailer 6
-
£469 GBP
€599 EUR
View
B+
Retailer 7
-
£567 GBP
$760 USD
View
B
Retailer 8
-
£741 GBP
$993 USD
View
Retailer 9
-
£966 GBP
$1,294 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG639487036 · Oct 26
£1,206 GBP
View
9 more retailers have this diamond
Prices start from £179 GBPSave up to £1,027 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 Princess
£179 GBP