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Round|Lab Grown|IGI

3.01ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG478113400

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478113400

Diamond specifications and retailer prices

From £1,256 GBP
As of November 5, 2026
Save £8,071 GBP (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £9,327 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.01ct lab-grown round diamond

This 3.01ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478113400 or 478113400. Listed at 11 retailers as of November 5, 2026, with prices from £1,256 to £9,327, a £8,071 spread on the same certified stone. MOH London lists it at £9,327. 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

3.01
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478113400
Dimensions9.20 × 9.12 × 5.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.20 mm9.12 mm3.01 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478113400
Side View
Table 60.5%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.4%

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 5
Current: £9,327 GBP|Low: £1,256 GBP|High: £9,477 GBP|Avg: £5,414 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2£1,256 GBP
Retailer 4£3,962 GBP
Retailer 6£4,436 GBP
Retailer 7£4,607 GBP
Retailer 8£4,918 GBP
Retailer 3£5,659 GBP
Retailer 9£5,921 GBP
Retailer 5£7,099 GBP
MOH London£9,327 GBP

15 data points across 9 retailers

11 retailers£1,256 GBP to £9,327 GBP

A
Cheapest Retailer
-
£1,256 GBP
B+
Retailer 2
-
£3,962 GBP
View
B+
Retailer 3
-
£4,152 GBP
View
B+
Retailer 4
-
£4,436 GBP
View
Final sale: no returns
B+
Retailer 5
-
£4,595 GBP
View
Retailer 6
-
£4,595 GBP
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£4,607 GBP
View
B
Retailer 8
-
£5,456 GBP
View
B
Retailer 9
-
£5,659 GBP
View
B
Retailer 10
-
£7,099 GBP
View
Most Expensive
B
MOH London
LG478113400 · Nov 5
£9,327 GBP
View
10 more retailers have this diamond
Prices start from £1,256 GBPSave up to £8,071 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
3.01ct Round
£1,256 GBP