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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG660443103

Shape and cutting style on the report: Round brilliant

Certificate IGI LG660443103

Diamond specifications and retailer prices

From £288 GBP
$386 USD
As of October 30, 2026
Save £551 GBP (66%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £839 GBP at MOH London · As of October 29, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG660443103 or 660443103. Listed at 6 retailers as of October 29, 2026, with prices from £288 to £839, a £551 spread on the same certified stone. MOH London lists it at £839. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660443103
Dimensions7.19 × 7.14 × 4.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.19 mm7.14 mm1.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660443103
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £839 GBP|Low: £269 GBP|High: £845 GBP|Avg: £469 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 3£288 GBP
Retailer 5£300 GBP
Retailer 4£352 GBP
Retailer 7£362 GBP
Retailer 2£440 GBP
Retailer 6£703 GBP
MOH London£839 GBP

9 data points across 7 retailers

6 retailers£288 GBP to £839 GBP

B+
Cheapest Retailer
-
£288 GBP
$386 USD
A
Retailer 2
-
£300 GBP
$402 USD
View
A
Retailer 3
-
£352 GBP
$472 USD
View
A
Retailer 4
-
£440 GBP
$590 USD
View
B+
Retailer 5
-
£703 GBP
$942 USD
View
Most Expensive
B+
MOH London
LG660443103 · Oct 29
£839 GBP
View
5 more retailers have this diamond
Prices start from £288 GBPSave up to £551 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
£288 GBP