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Round|Lab Grown|IGI

3.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG648415143

Shape and cutting style on the report: Round brilliant

Certificate IGI LG648415143

Diamond specifications and retailer prices

From £564 GBP
As of November 5, 2026
Save £1,380 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,944 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648415143 or 648415143. Listed at 7 retailers as of November 5, 2026, with prices from £564 to £1,944, a £1,380 spread on the same certified stone. MOH London lists it at £1,944. 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

3.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648415143
Dimensions9.32 × 9.24 × 5.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.32 mm9.24 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648415143
Side View
Table 57.0%Crown 35°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.8%

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: £1,944 GBP|Low: £564 GBP|High: £2,379 GBP|Avg: £1,081 GBP|-18.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£564 GBP
Retailer 5£644 GBP
Retailer 4£662 GBP
Retailer 2£763 GBP
Retailer 3£1,230 GBP
Retailer 7£1,606 GBP
MOH London£1,944 GBP

37 data points across 7 retailers

7 retailers£564 GBP to £1,944 GBP

A
Cheapest Retailer
-
£564 GBP
A
Retailer 2
-
£644 GBP
View
B+
Retailer 3
-
£662 GBP
View
A
Retailer 4
-
£763 GBP
View
B
Retailer 5
-
£1,230 GBP
View
B
Retailer 6
-
£1,606 GBP
View
Most Expensive
B
MOH London
LG648415143 · Nov 5
£1,944 GBP
View
6 more retailers have this diamond
Prices start from £564 GBPSave up to £1,380 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
3.05ct Round
£564 GBP