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Asscher|Lab Grown|IGI

4.01ct E SI1 Asscher Lab Grown Diamond

EX • E/SI1 • IGI LG826638574

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG826638574

Diamond specifications and retailer prices

From £378 GBP
$506 USD
As of October 29, 2026
Save £343 GBP (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £721 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 4.01ct lab-grown asscher diamond

This 4.01ct lab-grown asscher 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 LG826638574 or 826638574. Listed at 2 retailers as of October 29, 2026, with prices from £378 to £721, a £343 spread on the same certified stone. 77 Diamonds lists it at £721. 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

4.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826638574
Dimensions8.67 × 8.65 × 5.79 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.67 mm8.65 mm4.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826638574
Side View
Table 67.0%Crown 36.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £721 GBP|Low: £373 GBP|High: £721 GBP|Avg: £632 GBP|+4.8%
77 Diamonds
Retailer 2
Retailer 3
October 30, 2026
Retailer 2£378 GBP
Retailer 3£616 GBP
77 Diamonds£721 GBP

30 data points across 3 retailers

2 retailers£378 GBP to £721 GBP

A
Cheapest Retailer
-
£378 GBP
$506 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
ACTVSVE4GGJKC · Oct 30
£721 GBP
View
1 more retailer has this diamond
Prices start from £378 GBPSave up to £343 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
4.01ct Asscher
£378 GBP