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Heart|Lab Grown|IGI

3.21ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG575391909

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG575391909

Diamond specifications and retailer prices

From €1,380 EUR
$1,542 USD
As of October 31, 2026
Save €1,882 EUR (58%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €3,263 EUR at MOH London · As of October 27, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG575391909 or 575391909. Listed at 3 retailers as of October 27, 2026, with prices from €1,380 to €3,263, a €1,882 spread on the same certified stone. MOH London lists it at €3,263. 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
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575391909
Dimensions10.25 × 9.13 × 5.95 mm
L/W Ratio1.12
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
10.25 mm9.13 mm3.21 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575391909
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 58.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €3,263 EUR|Low: €1,378 EUR|High: €3,298 EUR|Avg: €2,021 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
October 27, 2026
Retailer 2€1,380 EUR
Retailer 3€1,400 EUR
MOH London€3,263 EUR

4 data points across 3 retailers

3 retailers€1,380 EUR to €3,263 EUR

B+
Cheapest Retailer
-
€1,380 EUR
$1,542 USD
B+
Retailer 2
-
€1,400 EUR
$1,564 USD
View
Most Expensive
B
MOH London
LG575391909 · Oct 27
€3,263 EUR
£2,870 GBP
View
2 more retailers have this diamond
Prices start from €1,380 EURSave up to €1,882 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.

B+
3.21ct Heart
€1,380 EUR