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Heart|Lab Grown|IGI

0.42ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG847661846

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG847661846

Diamond specifications and retailer prices

From $128 USD
HK$1,000 HKD
As of November 1, 2026
Save $278 USD (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $794 USD at MOH London · As of October 25, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG847661846 or 847661846. Listed at 7 retailers as of October 27, 2026, with a 218% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847661846
Dimensions4.55 × 5.12 × 3.04 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.55 mm5.12 mm0.42 ctF / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG847661846
Side View
Table 63.0%Crown 38.6°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 59.4%

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: $794 USD|Low: $128 USD|High: $794 USD|Avg: $355 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 27, 2026
Retailer 3$128 USD
Retailer 2$196 USD
Retailer 7$231 USD
Retailer 5$295 USD
Retailer 4$337 USD
Retailer 6$406 USD
MOH London$794 USD

3 data points across 7 retailers

7 retailers$128 USD to $406 USD

A
Cheapest Retailer
-
$128 USD
HK$1,000 HKD
B+
Retailer 2
-
$196 USD
£154 GBP
View
Retailer 3
-
$231 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$295 USD
£232 GBP
View
Price last confirmed 7 days ago
Retailer 5
-
$337 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$406 USD
View
Most Expensive
MOH London
LG847661846 · Oct 25
$794 USD
£625 GBP
View
Price last confirmed 8 days ago
6 more retailers have this diamond
Prices start from $128 USDSave up to $278 USD

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
$128 USD