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Round|Lab Grown|IGI

1.40ct J VS2 Round Lab Grown Diamond

EX • J/VS2 • IGI LG400942942

Shape and cutting style on the report: Round brilliant

Certificate IGI LG400942942

Diamond specifications and retailer prices

From £542 GBP
$726 USD
As of October 29, 2026
Save £1,225 GBP (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,481 GBP at MOH London · As of October 21, 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 J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG400942942 or 400942942. Listed at 13 retailers as of October 29, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
J
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG400942942
Dimensions7.16 × 7.12 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.16 mm7.12 mm1.40 ctJ / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG400942942
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 40.8°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: Oct 29
Current: £2,481 GBP|Low: £520 GBP|High: £2,501 GBP|Avg: £1,041 GBP|+0.5%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 10£542 GBP
Retailer 15£590 GBP
Retailer 4£606 GBP
Retailer 12£628 GBP
Retailer 14£628 GBP
Retailer 5£649 GBP
Retailer 2£731 GBP
Retailer 11£746 GBP
Retailer 9£761 GBP
Retailer 6£998 GBP
Retailer 13£1,019 GBP
Retailer 8£1,548 GBP
Retailer 3£1,767 GBP
Retailer 7£1,799 GBP
MOH London£2,481 GBP

27 data points across 15 retailers

13 retailers£542 GBP to £1,767 GBP

A
Cheapest Retailer
-
£542 GBP
$726 USD
A
Retailer 2
-
£590 GBP
$790 USD
View
A
Retailer 3
-
£606 GBP
$812 USD
View
Final sale: no returns
A
Retailer 4
-
£628 GBP
$842 USD
View
Retailer 5
-
£628 GBP
$842 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£649 GBP
$870 USD
View
A
Retailer 7
-
£731 GBP
View
B+
Retailer 8
-
£746 GBP
$1,000 USD
View
A
Retailer 9
-
£761 GBP
$1,020 USD
View
B+
Retailer 10
-
£1,019 GBP
$1,366 USD
View
B
Retailer 11
-
£1,548 GBP
$2,074 USD
View
B
Retailer 12
-
£1,767 GBP
$2,368 USD
View
Most Expensive
MOH London
LG400942942 · Oct 21
£2,481 GBP
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from £542 GBPSave up to £1,225 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
£542 GBP