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Round|Lab Grown|IGI

1.40ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG575381125

Shape and cutting style on the report: Round brilliant

Certificate IGI LG575381125

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of November 1, 2026
Save £440 GBP (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,495 GBP at MOH London · As of October 11, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG575381125 or 575381125. Listed at 18 retailers as of October 31, 2026, with a 299% 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
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575381125
Dimensions7.19 × 7.16 × 4.39 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
7.19 mm7.16 mm1.40 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575381125
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.2%

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 1
Current: £1,495 GBP|Low: £141 GBP|High: £1,495 GBP|Avg: £580 GBP
MOH London
Retailer 2
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Retailer 19
October 24, 2026
Retailer 16£147 GBP
Retailer 13£171 GBP
Retailer 15£182 GBP
Retailer 9£340 GBP
Retailer 5£378 GBP
Retailer 10£432 GBP
Retailer 3£433 GBP
Retailer 11£564 GBP
Retailer 17£571 GBP
Retailer 2£587 GBP
Retailer 12£597 GBP
Retailer 4£599 GBP
Retailer 6£611 GBP
Retailer 14£639 GBP
Retailer 7£661 GBP
Retailer 18£928 GBP
Retailer 19£1,061 GBP
Retailer 8£1,387 GBP
MOH London£1,495 GBP

25 data points across 19 retailers

18 retailers£147 GBP to £587 GBP

A
Cheapest Retailer
-
£147 GBP
$197 USD
A
Retailer 2
-
£171 GBP
$229 USD
View
A
Retailer 3
-
£182 GBP
$244 USD
View
Retailer 4
-
£378 GBP
$506 USD
View
Price last confirmed 16 days ago
Retailer 5
-
£432 GBP
$579 USD
View
Price last confirmed 9 days ago
Retailer 6
-
£433 GBP
$580 USD
View
Price last confirmed 9 days ago
Retailer 7
-
£571 GBP
$765 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
£587 GBP
$786 USD
View
Retailer 9
-
£597 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
£599 GBP
$802 USD
View
Price last confirmed 9 days ago
Retailer 11
-
£611 GBP
$819 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£639 GBP
ZAR 13,837 ZAR
View
Price last confirmed 9 days ago
Retailer 13
-
£661 GBP
View
Price last confirmed 24 days ago
Retailer 14
-
£928 GBP
A$1,913 AUD
View
Price last confirmed 13 days ago
Retailer 15
-
£1,061 GBP
$1,421 USD
View
Price last confirmed 10 days ago
Retailer 16
-
£1,241 GBP
$1,663 USD
View
Price last confirmed 8 days ago
Retailer 17
-
£1,387 GBP
$1,859 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG575381125 · Oct 11
£1,495 GBP
View
Price last confirmed 21 days ago
17 more retailers have this diamond
Prices start from £147 GBPSave up to £440 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
£147 GBP