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Round|Lab Grown|IGI

1.40ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG462132956

Shape and cutting style on the report: Round brilliant

Certificate IGI LG462132956

Diamond specifications and retailer prices

From £523 GBP
As of November 5, 2026
Save £1,855 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,378 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG462132956 or 462132956. Listed at 10 retailers as of November 5, 2026, with prices from £523 to £2,378, a £1,855 spread on the same certified stone. MOH London lists it at £2,378. 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

1.40
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462132956
Dimensions7.32 × 7.31 × 4.25 mm
L/W Ratio1.00
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
7.32 mm7.31 mm1.40 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG462132956
Side View
Table 62.0%Crown 32°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 58.1%

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: £2,378 GBP|Low: £383 GBP|High: £2,413 GBP|Avg: £989 GBP|-0.2%
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 3£383 GBP
Retailer 7£523 GBP
Retailer 10£569 GBP
Retailer 12£585 GBP
Retailer 2£594 GBP
Retailer 8£607 GBP
Retailer 4£614 GBP
Retailer 13£970 GBP
Retailer 9£985 GBP
Retailer 5£1,358 GBP
Retailer 6£1,495 GBP
Retailer 11£1,707 GBP
MOH London£2,378 GBP

17 data points across 13 retailers

10 retailers£523 GBP to £2,378 GBP

A
Cheapest Retailer
-
£523 GBP
A
Retailer 2
-
£569 GBP
View
A
Retailer 3
-
£585 GBP
View
Final sale: no returns
A
Retailer 4
-
£594 GBP
View
A
Retailer 5
-
£607 GBP
View
Retailer 6
-
£607 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£985 GBP
View
B
Retailer 8
-
£1,495 GBP
View
B
Retailer 9
-
£1,707 GBP
View
Most Expensive
B
MOH London
LG462132956 · Nov 5
£2,378 GBP
View
9 more retailers have this diamond
Prices start from £523 GBPSave up to £1,855 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
1.40ct Round
£523 GBP