Heart|Lab Grown|IGI

0.40ct H VS1 Heart Lab Grown Diamond

ID • H/VS1 • IGI LG799625520

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG799625520

Diamond specifications and retailer prices

From £151 GBP
$202 USD
As of November 1, 2026
Save £332 GBP (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £482 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct lab-grown heart diamond

This 0.4ct lab-grown heart sits in the sub-half-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799625520 or 799625520. Listed at 5 retailers as of November 1, 2026, with prices from £151 to £482, a £332 spread on the same certified stone. MOH London lists it at £482. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799625520
Dimensions4.32 × 3.88 × 2.89 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.32 mm3.88 mm0.40 ctH / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG799625520
Side View
Table 58.0%Crown 34.8°Girdle: THK-VTKPavilion 30°CuletDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £482 GBP|Low: £132 GBP|High: £509 GBP|Avg: £262 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5£151 GBP
Retailer 2£169 GBP
Retailer 3£238 GBP
Retailer 4£256 GBP
MOH London£482 GBP

20 data points across 5 retailers

5 retailers£151 GBP to £482 GBP

B+
Cheapest Retailer
-
£151 GBP
$202 USD
B+
Retailer 2
-
£169 GBP
View
B
Retailer 3
-
£238 GBP
$319 USD
View
B
Retailer 4
-
£256 GBP
$344 USD
View
Most Expensive
B
MOH London
LG799625520 · Nov 1
£482 GBP
View
4 more retailers have this diamond
Prices start from £151 GBPSave up to £332 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.

B+
0.40ct Heart
£151 GBP