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Heart|Lab Grown|IGI

3.42ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG649405720

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG649405720

Diamond specifications and retailer prices

From $1,274 AUD
As of November 4, 2026
Save $2,551 AUD (67%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,825 AUD at MOH London · As of November 1, 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 LG649405720 or 649405720. Listed at 5 retailers as of November 1, 2026, with prices from $1,274 to $3,825, a $2,551 spread on the same certified stone. MOH London lists it at $3,825. 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 angle38.2°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405720
Dimensions9.41 × 10.23 × 6.09 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.41 mm10.23 mm3.42 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405720
Side View
Table 61.0%Crown 38.2°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 59.5%

Caratlytics Score

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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: $3,825 AUD|Low: $1,048 AUD|High: $3,871 AUD|Avg: $1,973 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$1,048 AUD
Retailer 3$1,274 AUD
Retailer 2$1,299 AUD
Retailer 4$1,333 AUD
Retailer 6$1,882 AUD
Retailer 5$3,146 AUD
MOH London$3,825 AUD

10 data points across 7 retailers

5 retailers$1,274 AUD to $3,825 AUD

A
Cheapest Retailer
-
$1,274 AUD
B+
Retailer 2
-
$1,299 AUD
View
A
Retailer 3
-
$1,333 AUD
View
B
Retailer 4
-
$3,146 AUD
View
Most Expensive
B
MOH London
LG649405720 · Nov 1
$3,825 AUD
£2,113 GBP
View
4 more retailers have this diamond
Prices start from $1,274 AUDSave up to $2,551 AUD

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
$1,274 AUD