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Heart|Lab Grown|IGI

3.21ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG575391916

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG575391916

Diamond specifications and retailer prices

From €1,154 EUR
$1,289 USD
As of October 31, 2026
Save €2,104 EUR (65%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €3,258 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 3.21ct lab-grown heart diamond

This 3.21ct lab-grown heart sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG575391916 or 575391916. Listed at 3 retailers as of October 31, 2026, with prices from €1,154 to €3,258, a €2,104 spread on the same certified stone. MOH London lists it at €3,258. 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

3.21
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575391916
Dimensions10.24 × 9.32 × 5.86 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.24 mm9.32 mm3.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575391916
Side View
Table 57.0%Crown 33.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €3,258 EUR|Low: €1,154 EUR|High: €3,298 EUR|Avg: €1,945 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
November 1, 2026
Retailer 2€1,154 EUR
Retailer 3€1,400 EUR
MOH London€3,258 EUR

4 data points across 3 retailers

3 retailers€1,154 EUR to €3,258 EUR

A
Cheapest Retailer
-
€1,154 EUR
$1,289 USD
B+
Retailer 2
-
€1,400 EUR
$1,564 USD
View
Most Expensive
B
MOH London
LG575391916 · Nov 1
€3,258 EUR
£2,866 GBP
View
2 more retailers have this diamond
Prices start from €1,154 EURSave up to €2,104 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
3.21ct Heart
€1,154 EUR