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Princess|Lab Grown|IGI

4.00ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG680523915

Shape and cutting style on the report: Princess cut

Certificate IGI LG680523915

Diamond specifications and retailer prices

From £384 GBP
$511 USD
As of October 27, 2026
Save £1,989 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,373 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown princess diamond

This 4ct lab-grown princess sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG680523915 or 680523915. Listed at 20 retailers as of October 27, 2026, with prices from £384 to £2,373, a £1,989 spread on the same certified stone. Brilliant Earth lists it at £2,373. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680523915
Dimensions8.77 × 8.54 × 6.03 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
8.77 mm8.54 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680523915
Side View
Table 64.0%Crown 39.4°Girdle: MediumPavilion 37.7°Culet: NoneDepth 70.6%

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 27
Current: £2,373 GBP|Low: £384 GBP|High: £4,633 GBP|Avg: £1,122 GBP|-48.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 12£384 GBP
Retailer 4£429 GBP
Retailer 8£578 GBP
Retailer 9£668 GBP
Retailer 6£695 GBP
Retailer 3£716 GBP
Retailer 2£737 GBP
Retailer 5£1,035 GBP
Retailer 11£1,228 GBP
Retailer 13£1,506 GBP
Retailer 10£1,712 GBP
Retailer 7£1,997 GBP
Brilliant Earth£2,373 GBP

38 data points across 13 retailers

20 retailers£384 GBP to £2,373 GBP

A
Cheapest Retailer
-
£384 GBP
$511 USD
A
Retailer 2
-
£429 GBP
$571 USD
View
Final sale: no returns
A
Retailer 3
-
£430 GBP
$572 USD
View
A
Retailer 4
-
£476 GBP
$634 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£476 GBP
$634 USD
View
A
Retailer 6
-
£519 GBP
HK$5,400 HKD
View
A
Retailer 7
-
£578 GBP
$770 USD
View
B+
Retailer 8
-
£668 GBP
$890 USD
View
A
Retailer 9
-
£695 GBP
€882 EUR
View
A
Retailer 10
-
£716 GBP
$954 USD
View
A
Retailer 11
-
£737 GBP
View
B+
Retailer 12
-
£1,035 GBP
$1,378 USD
View
B+
Retailer 13
-
£1,228 GBP
$1,635 USD
View
B+
Retailer 14
-
£1,252 GBP
$1,667 USD
View
B
Retailer 15
-
£1,506 GBP
SGD 2,711 SGD
View
B
Retailer 16
-
£1,548 GBP
$2,062 USD
View
B
Retailer 17
-
£1,565 GBP
$2,084 USD
View
B
Retailer 18
-
£1,712 GBP
$2,280 USD
View
B
Retailer 19
-
£1,997 GBP
View
Most Expensive
B
Brilliant Earth
14717411A · Oct 29
£2,373 GBP
$3,160 USD
View
19 more retailers have this diamond
Prices start from £384 GBPSave up to £1,989 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
4.00ct Princess
£384 GBP