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Asscher|Lab Grown|IGI

1.03ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG771638736

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG771638736

Diamond specifications and retailer prices

From £215 GBP
As of October 31, 2026
Save £843 GBP (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,059 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.03ct lab-grown asscher diamond

This 1.03ct 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 LG771638736 or 771638736. Listed at 5 retailers as of October 26, 2026, with prices from £215 to £1,059, a £843 spread on the same certified stone. MOH London lists it at £1,059. 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

1.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771638736
Dimensions5.49 × 5.42 × 3.59 mm
L/W Ratio1.01
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
5.49 mm5.42 mm1.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771638736
Side View
Table 68.0%Crown 43.9°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £1,059 GBP|Low: £206 GBP|High: £1,070 GBP|Avg: £424 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2£215 GBP
Retailer 4£238 GBP
Retailer 3£241 GBP
MOH London£1,059 GBP

41 data points across 4 retailers

5 retailers£215 GBP to £1,059 GBP

A
Cheapest Retailer
-
£215 GBP
A
Retailer 2
-
£238 GBP
$319 USD
View
A
Retailer 3
-
£241 GBP
View
B
Retailer 4
-
£449 GBP
$601 USD
View
Most Expensive
B
MOH London
LG771638736 · Oct 26
£1,059 GBP
View
4 more retailers have this diamond
Prices start from £215 GBPSave up to £843 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
1.03ct Asscher
£215 GBP