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Heart|Lab Grown|IGI

3.42ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG741544477

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG741544477

Diamond specifications and retailer prices

From €419 EUR
As of November 4, 2026
Save €1,484 EUR (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,903 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 3.42ct lab-grown heart diamond

This 3.42ct lab-grown heart sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG741544477 or 741544477. Listed at 14 retailers as of November 4, 2026, with prices from €419 to €1,903, a €1,484 spread on the same certified stone. MOH London lists it at €1,903. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.42
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741544477
Dimensions9.40 × 10.51 × 6.01 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.40 mm10.51 mm3.42 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741544477
Side View
Table 59.0%Crown 35.7°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 57.2%

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 4
Current: €1,903 EUR|Low: €419 EUR|High: €2,339 EUR|Avg: €1,071 EUR|-18.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 14€419 EUR
Retailer 8€470 EUR
Retailer 5€519 EUR
Retailer 6€525 EUR
Retailer 10€643 EUR
Retailer 13€796 EUR
Retailer 3€812 EUR
Retailer 12€1,070 EUR
Retailer 2€1,101 EUR
Retailer 7€1,127 EUR
Retailer 11€1,396 EUR
Retailer 9€1,669 EUR
Retailer 4€1,695 EUR
MOH London€1,903 EUR

33 data points across 14 retailers

14 retailers€419 EUR to €1,903 EUR

A
Cheapest Retailer
-
€419 EUR
A
Retailer 2
-
€470 EUR
View
A
Retailer 3
-
€519 EUR
View
Retailer 4
-
€525 EUR
View
Price last confirmed 20 days ago
A
Retailer 5
-
€643 EUR
View
A
Retailer 6
-
€796 EUR
View
B+
Retailer 7
-
€812 EUR
View
A
Retailer 8
-
€1,070 EUR
View
A
Retailer 9
-
€1,101 EUR
View
A
Retailer 10
-
€1,127 EUR
View
B+
Retailer 11
-
€1,396 EUR
View
B+
Retailer 12
-
€1,669 EUR
View
B+
Retailer 13
-
€1,695 EUR
View
Most Expensive
B
MOH London
LG741544477 · Nov 5
€1,903 EUR
£1,688 GBP
View
13 more retailers have this diamond
Prices start from €419 EURSave up to €1,484 EUR

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
3.42ct Heart
€419 EUR