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Round|Lab Grown|IGI

3.03ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG666413562

Shape and cutting style on the report: Round brilliant

Certificate IGI LG666413562

Diamond specifications and retailer prices

From £282 GBP
As of November 5, 2026
Save £1,087 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,369 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.03ct lab-grown round diamond

This 3.03ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG666413562 or 666413562. Listed at 13 retailers as of November 1, 2026, with prices from £282 to £1,369, a £1,087 spread on the same certified stone. MOH London lists it at £1,369. 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

3.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666413562
Dimensions9.43 × 9.29 × 5.72 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm9.29 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666413562
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.4%

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: £1,369 GBP|Low: £271 GBP|High: £1,464 GBP|Avg: £628 GBP|-5.5%
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 7£282 GBP
Retailer 3£317 GBP
Retailer 5£335 GBP
Retailer 9£350 GBP
Retailer 10£350 GBP
Retailer 6£461 GBP
Retailer 12£558 GBP
Retailer 13£577 GBP
Retailer 2£626 GBP
Retailer 4£695 GBP
Retailer 8£982 GBP
Retailer 11£1,126 GBP
MOH London£1,369 GBP

44 data points across 13 retailers

13 retailers£282 GBP to £1,369 GBP

A
Cheapest Retailer
-
£282 GBP
A
Retailer 2
-
£317 GBP
View
A
Retailer 3
-
£335 GBP
View
Final sale: no returns
Retailer 4
-
£350 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£350 GBP
View
A
Retailer 6
-
£461 GBP
View
B+
Retailer 7
-
£558 GBP
View
A
Retailer 8
-
£577 GBP
View
A
Retailer 9
-
£626 GBP
View
A
Retailer 10
-
£695 GBP
View
B+
Retailer 11
-
£982 GBP
View
B+
Retailer 12
-
£1,126 GBP
View
Most Expensive
B
MOH London
LG666413562 · Nov 1
£1,369 GBP
View
12 more retailers have this diamond
Prices start from £282 GBPSave up to £1,087 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
3.03ct Round
£282 GBP