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0.55ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG793621840

Shape and cutting style on the report: Round brilliant

Certificate IGI LG793621840

Diamond specifications and retailer prices

From £130 GBP
As of November 1, 2026
Save £666 GBP (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG793621840 or 793621840. Listed at 6 retailers as of November 1, 2026, with prices from £130 to £796, a £666 spread on the same certified stone. MOH London lists it at £796. 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

0.55
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793621840
Dimensions5.24 × 5.22 × 3.24 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.24 mm5.22 mm0.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793621840
Side View
Table 59.0%Crown 34.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.9%

Caratlytics Score

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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 1
Current: £796 GBP|Low: £91 GBP|High: £806 GBP|Avg: £249 GBP|+15.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 7£91 GBP
Retailer 6£91 GBP
Retailer 4£130 GBP
Retailer 3£184 GBP
Retailer 2£192 GBP
Retailer 5£323 GBP
MOH London£796 GBP

38 data points across 7 retailers

6 retailers£130 GBP to £796 GBP

Retailer 1
-
£91 GBP
Price last confirmed 52 days ago
A
Retailer 2
-
£130 GBP
View
A
Retailer 3
-
£184 GBP
View
B+
Retailer 4
-
£192 GBP
View
B
Retailer 5
-
£323 GBP
View
Most Expensive
B
MOH London
LG793621840 · Nov 2
£796 GBP
View
5 more retailers have this diamond
Prices start from £130 GBPSave up to £666 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
0.55ct Round
£130 GBP