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Asscher|Lab Grown|IGI

1.00ct E SI1 Asscher Lab Grown Diamond

VG • E/SI1 • IGI LG380987909

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG380987909

Diamond specifications and retailer prices

From £224 GBP
As of October 31, 2026
Save £390 GBP (64%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £614 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 very-good cut grade and certified by IGI LG380987909 or 380987909. Listed at 3 retailers as of October 29, 2026, with prices from £224 to £614, a £390 spread on the same certified stone. MOH London lists it at £614. 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

1.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle28.7°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG380987909
Dimensions5.45 × 5.35 × 3.40 mm
L/W Ratio1.02
Top View
5.45 mm5.35 mm1.00 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG380987909
Side View
Table 74.0%Crown 28.7°Girdle: MED-STKPavilion 43.5°CuletDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £614 GBP|Low: £178 GBP|High: £619 GBP|Avg: £355 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
October 31, 2026
Retailer 2£224 GBP
Retailer 3£243 GBP
MOH London£614 GBP

35 data points across 3 retailers

3 retailers£224 GBP to £614 GBP

B+
Cheapest Retailer
-
£224 GBP
B+
Retailer 2
-
£243 GBP
$326 USD
View
Most Expensive
C
MOH London
LG380987909 · Oct 29
£614 GBP
View
2 more retailers have this diamond
Prices start from £224 GBPSave up to £390 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+
1.00ct Asscher
£224 GBP