CaratHunter
Plans
Asscher|Lab Grown|IGI

1.00ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG474106590

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG474106590

Diamond specifications and retailer prices

From £116 GBP
$156 USD
As of October 30, 2026
Save £490 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £607 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474106590 or 474106590. Listed at 10 retailers as of October 29, 2026, with prices from £116 to £607, a £490 spread on the same certified stone. MOH London lists it at £607. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishGood
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474106590
Dimensions5.44 × 5.43 × 3.67 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.44 mm5.43 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishGood
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474106590
Side View
Table 73.0%Crown 32.4°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 67.5%

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 30
Current: £607 GBP|Low: £116 GBP|High: £611 GBP|Avg: £265 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7£116 GBP
Retailer 5£129 GBP
Retailer 6£172 GBP
Retailer 2£221 GBP
Retailer 3£226 GBP
Retailer 4£245 GBP
Retailer 8£312 GBP
MOH London£607 GBP

43 data points across 8 retailers

10 retailers£116 GBP to £607 GBP

A
Cheapest Retailer
-
£116 GBP
$156 USD
Final sale: no returns
A
Retailer 2
-
£129 GBP
$173 USD
View
A
Retailer 3
-
£153 GBP
HK$1,600 HKD
View
B+
Retailer 4
-
£172 GBP
$230 USD
View
A
Retailer 5
-
£221 GBP
View
A
Retailer 6
-
£226 GBP
€289 EUR
View
A
Retailer 7
-
£245 GBP
View
B+
Retailer 8
-
£312 GBP
$418 USD
View
B
Retailer 9
-
£469 GBP
View
Most Expensive
B
MOH London
LG474106590 · Oct 29
£607 GBP
View
9 more retailers have this diamond
Prices start from £116 GBPSave up to £490 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
1.00ct Asscher
£116 GBP