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Asscher|Lab Grown|IGI

4.20ct E VVS2 Asscher Lab Grown Diamond

EX • E/VVS2 • IGI LG826699375

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG826699375

Diamond specifications and retailer prices

From £512 GBP
$686 USD
As of October 29, 2026
Save £3,242 GBP (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,754 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.2ct lab-grown asscher diamond

This 4.2ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG826699375 or 826699375. Listed at 4 retailers as of October 29, 2026, with prices from £512 to £3,754, a £3,242 spread on the same certified stone. Brilliant Earth lists it at £3,754. 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

4.20
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826699375
Dimensions8.95 × 8.78 × 5.97 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.95 mm8.78 mm4.20 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826699375
Side View
Table 66.0%Crown 38.3°Girdle: MediumPavilion 40.2°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
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 29
Current: £3,754 GBP|Low: £493 GBP|High: £7,150 GBP|Avg: £2,084 GBP|-47.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3£512 GBP
Retailer 5£653 GBP
Retailer 6£837 GBP
Retailer 2£878 GBP
Retailer 4£2,885 GBP
Brilliant Earth£3,754 GBP

36 data points across 6 retailers

4 retailers£512 GBP to £3,754 GBP

A
Cheapest Retailer
-
£512 GBP
$686 USD
Final sale: no returns
A
Retailer 2
-
£878 GBP
View
Retailer 3
-
£2,885 GBP
$3,865 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21249965A · Oct 30
£3,754 GBP
$5,030 USD
View
3 more retailers have this diamond
Prices start from £512 GBPSave up to £3,242 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
4.20ct Asscher
£512 GBP