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Heart|Lab Grown|IGI

3.49ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG821640937

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821640937

Diamond specifications and retailer prices

From €2,121 EUR
$2,370 USD
As of October 30, 2026
Save €12,504 EUR (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €14,626 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.49ct lab-grown heart diamond

This 3.49ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821640937 or 821640937. Listed at 11 retailers as of October 30, 2026, with prices from €2,121 to €14,626, a €12,504 spread on the same certified stone. Do Amore Diamonds lists it at €14,626. 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

3.49
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821640937
Dimensions9.59 × 10.15 × 6.14 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.59 mm10.15 mm3.49 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821640937
Side View
Table 60.0%Crown 37°Girdle: THK-VTKPavilion 39.7°Culet: NoneDepth 60.5%

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: Oct 30
Current: €14,626 EUR|Low: €2,121 EUR|High: €17,759 EUR|Avg: €6,598 EUR|-17.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€2,121 EUR
Retailer 11€2,313 EUR
Retailer 9€2,614 EUR
Retailer 12€2,884 EUR
Retailer 8€3,697 EUR
Retailer 10€3,741 EUR
Retailer 7€3,846 EUR
Retailer 5€4,605 EUR
Retailer 6€7,325 EUR
Retailer 4€13,428 EUR
Retailer 3€13,838 EUR
Do Amore Diamonds€14,626 EUR

26 data points across 12 retailers

11 retailers€2,121 EUR to €14,626 EUR

A
Cheapest Retailer
-
€2,121 EUR
$2,370 USD
A
Retailer 2
-
€2,313 EUR
$2,584 USD
View
A
Retailer 3
-
€2,614 EUR
$2,920 USD
View
A
Retailer 4
-
€2,884 EUR
$3,222 USD
View
A
Retailer 5
-
€3,697 EUR
$4,130 USD
View
A
Retailer 6
-
€3,741 EUR
$4,179 USD
View
B+
Retailer 7
-
€3,846 EUR
$4,297 USD
View
B+
Retailer 8
-
€4,605 EUR
View
B+
Retailer 9
-
€7,325 EUR
£6,444 GBP
View
B
Retailer 10
-
€13,838 EUR
$15,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-00B62D06B · Oct 31
€14,626 EUR
$16,340 USD
View
10 more retailers have this diamond
Prices start from €2,121 EURSave up to €12,504 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
3.49ct Heart
€2,121 EUR