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Heart|Lab Grown|IGI

1.01ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • IGI LG825653941

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825653941

Diamond specifications and retailer prices

From £244 GBP
As of November 6, 2026
Save £420 GBP (63%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £664 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart 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 LG825653941 or 825653941. Listed at 4 retailers as of November 2, 2026, with prices from £244 to £664, a £420 spread on the same certified stone. MOH London lists it at £664. 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

1.01
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825653941
Dimensions6.11 × 6.98 × 4.04 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.11 mm6.98 mm1.01 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825653941
Side View
Table 62.0%Crown 32°Girdle: MED-STKPavilion 39.4°CuletDepth 57.9%

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: Nov 6
Current: £664 GBP|Low: £239 GBP|High: £667 GBP|Avg: £355 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2£244 GBP
Retailer 4£260 GBP
Retailer 3£269 GBP
MOH London£664 GBP

22 data points across 4 retailers

4 retailers£244 GBP to £664 GBP

B+
Cheapest Retailer
-
£244 GBP
B+
Retailer 2
-
£260 GBP
View
B+
Retailer 3
-
£269 GBP
View
Most Expensive
B
MOH London
LG825653941 · Nov 2
£664 GBP
View
3 more retailers have this diamond
Prices start from £244 GBPSave up to £420 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+
1.01ct Heart
£244 GBP