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Heart|Lab Grown|IGI

0.42ct I VS1 Heart Lab Grown Diamond

ID • I/VS1 • IGI LG782659705

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG782659705

Diamond specifications and retailer prices

From £119 GBP
$160 USD
As of November 1, 2026
Save £502 GBP (81%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £622 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.42ct lab-grown heart diamond

This 0.42ct lab-grown heart sits in the sub-half-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782659705 or 782659705. Listed at 5 retailers as of November 1, 2026, with prices from £119 to £622, a £502 spread on the same certified stone. MOH London lists it at £622. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.42
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782659705
Dimensions4.70 × 5.18 × 2.93 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.70 mm5.18 mm0.42 ctI / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG782659705
Side View
Table 65.0%Crown 33.9°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 56.6%

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 1
Current: £622 GBP|Low: £110 GBP|High: £629 GBP|Avg: £294 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£119 GBP
Retailer 2£161 GBP
Retailer 5£216 GBP
Retailer 4£311 GBP
Retailer 6£316 GBP
MOH London£622 GBP

17 data points across 6 retailers

5 retailers£119 GBP to £622 GBP

A
Cheapest Retailer
-
£119 GBP
$160 USD
B+
Retailer 2
-
£161 GBP
€205 EUR
View
B
Retailer 3
-
£311 GBP
$417 USD
View
B
Retailer 4
-
£316 GBP
$424 USD
View
Most Expensive
B
MOH London
LG782659705 · Nov 1
£622 GBP
View
4 more retailers have this diamond
Prices start from £119 GBPSave up to £502 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
0.42ct Heart
£119 GBP