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Round|Lab Grown|IGI

1.04ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG799643122

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799643122

Diamond specifications and retailer prices

From £108 GBP
As of November 5, 2026
Save £515 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £623 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.04ct lab-grown round diamond

This 1.04ct lab-grown round 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 LG799643122 or 799643122. Listed at 18 retailers as of November 4, 2026, with prices from £108 to £623, a £515 spread on the same certified stone. MOH London lists it at £623. 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

1.04
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799643122
Dimensions6.55 × 6.53 × 3.93 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.55 mm6.53 mm1.04 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799643122
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £623 GBP|Low: £107 GBP|High: £632 GBP|Avg: £305 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 6, 2026
Retailer 12£108 GBP
Retailer 8£125 GBP
Retailer 3£134 GBP
Retailer 4£212 GBP
Retailer 2£227 GBP
Retailer 14£247 GBP
Retailer 9£259 GBP
Retailer 15£301 GBP
Retailer 11£327 GBP
Retailer 10£348 GBP
Retailer 7£357 GBP
Retailer 6£367 GBP
Retailer 13£372 GBP
Retailer 16£429 GBP
Retailer 5£470 GBP
MOH London£623 GBP

32 data points across 16 retailers

18 retailers£108 GBP to £623 GBP

A
Cheapest Retailer
-
£108 GBP
A
Retailer 2
-
£120 GBP
View
Final sale: no returns
A
Retailer 3
-
£125 GBP
View
Retailer 4
-
£134 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£134 GBP
View
A
Retailer 6
-
£212 GBP
View
A
Retailer 7
-
£227 GBP
View
A
Retailer 8
-
£247 GBP
View
A
Retailer 9
-
£259 GBP
View
B+
Retailer 10
-
£301 GBP
View
B+
Retailer 11
-
£327 GBP
View
B
Retailer 12
-
£348 GBP
View
Retailer 13
-
£357 GBP
View
Price last confirmed 21 days ago
B+
Retailer 14
-
£367 GBP
View
B+
Retailer 15
-
£372 GBP
View
B
Retailer 16
-
£429 GBP
View
B
Retailer 17
-
£470 GBP
View
Most Expensive
B
MOH London
LG799643122 · Nov 4
£623 GBP
View
17 more retailers have this diamond
Prices start from £108 GBPSave up to £515 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
1.04ct Round
£108 GBP