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Round|Lab Grown|IGI

3.09ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG653450582

Shape and cutting style on the report: Round brilliant

Certificate IGI LG653450582

Diamond specifications and retailer prices

From £476 GBP
As of November 4, 2026
Save £1,104 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,580 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG653450582 or 653450582. Listed at 8 retailers as of November 3, 2026, with prices from £476 to £1,580, a £1,104 spread on the same certified stone. MOH London lists it at £1,580. 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

3.09
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653450582
Dimensions9.35 × 9.37 × 5.75 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.35 mm9.37 mm3.09 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653450582
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.4%

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 4
Current: £1,580 GBP|Low: £466 GBP|High: £3,160 GBP|Avg: £1,099 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£476 GBP
Retailer 4£653 GBP
Retailer 5£655 GBP
Retailer 8£672 GBP
Retailer 2£704 GBP
Retailer 7£752 GBP
Retailer 3£1,248 GBP
MOH London£1,580 GBP
Retailer 9£3,160 GBP

10 data points across 9 retailers

8 retailers£476 GBP to £1,580 GBP

A
Cheapest Retailer
-
£476 GBP
Retailer 2
-
£653 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£655 GBP
View
B+
Retailer 4
-
£672 GBP
View
A
Retailer 5
-
£704 GBP
View
B+
Retailer 6
-
£752 GBP
View
B
Retailer 7
-
£1,248 GBP
View
Most Expensive
B
MOH London
LG653450582 · Nov 3
£1,580 GBP
View
7 more retailers have this diamond
Prices start from £476 GBPSave up to £1,104 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
3.09ct Round
£476 GBP