Asscher|Lab Grown|IGI

1.03ct E SI2 Asscher Lab Grown Diamond

FR • E/SI2 • IGI LG450012180

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG450012180

Diamond specifications and retailer prices

From £113 GBP
As of November 5, 2026
Save £532 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £645 GBP at MOH London · As of November 4, 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 SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG450012180 or 450012180. Listed at 12 retailers as of November 4, 2026, with prices from £113 to £645, a £532 spread on the same certified stone. MOH London lists it at £645. 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

1.03
Carat
E
Colour
SI2
Clarity
Fair
Cut

Specifications

CutFair
PolishGood
SymmetryGood
FluorescenceNone
Crown angle43.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450012180
Dimensions5.49 × 5.45 × 3.49 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT). Type II
Top View
5.49 mm5.45 mm1.03 ctE / SI2
OriginLab Grown
CutFair
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG450012180
Side View
Table 77.0%Crown 43.4°Girdle: Slightly ThickPavilion 39.1°Culet: NoneDepth 64.0%

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: Nov 5
Current: £645 GBP|Low: £113 GBP|High: £918 GBP|Avg: £325 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£113 GBP
Retailer 7£195 GBP
Retailer 2£238 GBP
Retailer 4£244 GBP
Retailer 5£262 GBP
Retailer 6£308 GBP
Retailer 3£334 GBP
Retailer 8£602 GBP
MOH London£645 GBP

46 data points across 9 retailers

12 retailers£113 GBP to £645 GBP

B+
Cheapest Retailer
-
£113 GBP
Final sale: no returns
B
Retailer 2
-
£195 GBP
View
B+
Retailer 3
-
£218 GBP
View
B+
Retailer 4
-
£238 GBP
View
Retailer 5
-
£244 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£262 GBP
View
B
Retailer 7
-
£308 GBP
View
B
Retailer 8
-
£334 GBP
View
C
Retailer 9
-
£522 GBP
View
C
Retailer 10
-
£602 GBP
View
C
Retailer 11
-
£620 GBP
View
Most Expensive
C
MOH London
LG450012180 · Nov 4
£645 GBP
View
11 more retailers have this diamond
Prices start from £113 GBPSave up to £532 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+
1.03ct Asscher
£113 GBP