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Asscher|Lab Grown|IGI

1.00ct F SI1 Asscher Lab Grown Diamond

FR • F/SI1 • IGI LG474106649

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG474106649

Diamond specifications and retailer prices

From £114 GBP
As of November 6, 2026
Save £535 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £648 GBP at MOH London · As of November 4, 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG474106649 or 474106649. Listed at 11 retailers as of November 4, 2026, with prices from £114 to £648, a £535 spread on the same certified stone. MOH London lists it at £648. 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
F
Colour
SI1
Clarity
Fair
Cut

Specifications

CutFair
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle39.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474106649
Dimensions5.35 × 5.30 × 3.25 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
5.35 mm5.30 mm1.00 ctF / SI1
OriginLab Grown
CutFair
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI LG474106649
Side View
Table 77.5%Crown 39.8°Girdle: THK-VTKPavilion 39°Culet: NoneDepth 61.3%

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 6
Current: £648 GBP|Low: £111 GBP|High: £944 GBP|Avg: £335 GBP|+2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£114 GBP
Retailer 7£197 GBP
Retailer 8£218 GBP
Retailer 3£239 GBP
Retailer 2£244 GBP
Retailer 4£264 GBP
Retailer 5£308 GBP
Retailer 10£525 GBP
Retailer 9£632 GBP
MOH London£648 GBP

44 data points across 10 retailers

11 retailers£114 GBP to £648 GBP

B+
Cheapest Retailer
-
£114 GBP
Final sale: no returns
B
Retailer 2
-
£197 GBP
View
B+
Retailer 3
-
£218 GBP
View
B+
Retailer 4
-
£239 GBP
View
Retailer 5
-
£244 GBP
View
B+
Retailer 6
-
£264 GBP
View
B
Retailer 7
-
£308 GBP
View
C
Retailer 8
-
£516 GBP
View
C
Retailer 9
-
£525 GBP
View
C
Retailer 10
-
£632 GBP
View
Most Expensive
C
MOH London
LG474106649 · Nov 4
£648 GBP
View
10 more retailers have this diamond
Prices start from £114 GBPSave up to £535 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
£114 GBP