Asscher|Lab Grown|IGI

4.01ct J VS1 Asscher Lab Grown Diamond

VG • J/VS1 • IGI LG784627919

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG784627919

Diamond specifications and retailer prices

From £312 GBP
$418 USD
As of October 30, 2026
Save £955 GBP (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,267 GBP at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

About this 4.01ct lab-grown asscher diamond

This 4.01ct lab-grown asscher sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG784627919 or 784627919. Listed at 12 retailers as of October 29, 2026, with prices from £312 to £1,267, a £955 spread on the same certified stone. Taylor and Hart lists it at £1,267. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.01
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784627919
Dimensions8.89 × 8.76 × 5.68 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.89 mm8.76 mm4.01 ctJ / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784627919
Side View
Table 69.0%Crown 41°Girdle: MediumPavilion 40.7°Culet: NoneDepth 64.8%

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 30
Current: £434 GBP|Low: £312 GBP|High: £1,639 GBP|Avg: £702 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 30, 2026
Retailer 3£312 GBP
Retailer 2£349 GBP
Retailer 5£387 GBP
Retailer 9£430 GBP
Retailer 1£434 GBP
Retailer 6£496 GBP
Retailer 12£610 GBP
Retailer 7£644 GBP
Retailer 11£769 GBP
Retailer 10£857 GBP
Retailer 4£916 GBP
Retailer 8£1,242 GBP
Taylor and Hart£1,267 GBP

4 data points across 13 retailers

12 retailers£312 GBP to £1,267 GBP

B+
Cheapest Retailer
-
£312 GBP
$418 USD
B+
Retailer 2
-
£349 GBP
$468 USD
View
B+
Retailer 3
-
£387 GBP
$518 USD
View
B+
Retailer 4
-
£430 GBP
HK$4,500 HKD
View
B+
Retailer 5
-
£434 GBP
View
B+
Retailer 6
-
£496 GBP
$665 USD
View
B+
Retailer 7
-
£610 GBP
$817 USD
View
B+
Retailer 8
-
£644 GBP
$863 USD
View
B+
Retailer 9
-
£769 GBP
ZAR 16,643 ZAR
View
B+
Retailer 10
-
£857 GBP
$1,148 USD
View
B
Retailer 11
-
£1,242 GBP
$1,664 USD
View
Most Expensive
B
Taylor and Hart
3ZCMNSM · Oct 29
£1,267 GBP
$1,698 USD
View
11 more retailers have this diamond
Prices start from £312 GBPSave up to £955 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 Asscher
£312 GBP