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0.55ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG700512746

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700512746

Diamond specifications and retailer prices

From £64 GBP
As of November 5, 2026
Save £517 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £581 GBP at MOH London · As of November 4, 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 LG700512746 or 700512746. Listed at 13 retailers as of November 4, 2026, with prices from £64 to £581, a £517 spread on the same certified stone. MOH London lists it at £581. 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 angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700512746
Dimensions5.25 × 5.23 × 3.26 mm
L/W Ratio1.00
Girdle conditionFaceted
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
5.25 mm5.23 mm0.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700512746
Side View
Table 57.0%Crown 35.7°Girdle: Med.Pavilion 40.7°Culet: NoneDepth 62.2%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £581 GBP|Low: £64 GBP|High: £586 GBP|Avg: £186 GBP|-0.5%
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
November 5, 2026
Retailer 13£64 GBP
Retailer 10£74 GBP
Retailer 9£85 GBP
Retailer 3£115 GBP
Retailer 2£143 GBP
Retailer 7£152 GBP
Retailer 11£169 GBP
Retailer 5£191 GBP
Retailer 4£201 GBP
Retailer 12£253 GBP
Retailer 8£256 GBP
Retailer 6£285 GBP
MOH London£581 GBP

23 data points across 13 retailers

13 retailers£64 GBP to £581 GBP

A
Cheapest Retailer
-
£64 GBP
A
Retailer 2
-
£74 GBP
View
A
Retailer 3
-
£85 GBP
View
A
Retailer 4
-
£115 GBP
View
A
Retailer 5
-
£143 GBP
View
A
Retailer 6
-
£152 GBP
View
A
Retailer 7
-
£169 GBP
View
B+
Retailer 8
-
£170 GBP
View
B+
Retailer 9
-
£201 GBP
View
B+
Retailer 10
-
£253 GBP
View
B+
Retailer 11
-
£256 GBP
View
B+
Retailer 12
-
£285 GBP
View
Most Expensive
B
MOH London
LG700512746 · Nov 4
£581 GBP
View
12 more retailers have this diamond
Prices start from £64 GBPSave up to £517 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
£64 GBP