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Heart|Lab Grown|IGI

3.64ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG821638865

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821638865

Diamond specifications and retailer prices

From €2,491 EUR
$2,783 USD
As of October 30, 2026
Save €14,704 EUR (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €17,195 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.64ct lab-grown heart diamond

This 3.64ct 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 LG821638865 or 821638865. Listed at 10 retailers as of October 30, 2026, with prices from €2,491 to €17,195, a €14,704 spread on the same certified stone. Do Amore Diamonds lists it at €17,195. 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

3.64
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638865
Dimensions8.91 × 10.47 × 6.47 mm
L/W Ratio1.18
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
8.91 mm10.47 mm3.64 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638865
Side View
Table 59.0%Crown 36.5°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 61.8%

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: Oct 30
Current: €17,195 EUR|Low: €2,491 EUR|High: €19,235 EUR|Avg: €7,375 EUR|-10.6%
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 31, 2026
Retailer 6€2,491 EUR
Retailer 12€2,718 EUR
Retailer 10€3,043 EUR
Retailer 2€3,102 EUR
Retailer 11€3,997 EUR
Retailer 9€4,165 EUR
Retailer 8€4,509 EUR
Retailer 3€6,271 EUR
Retailer 7€8,153 EUR
Retailer 5€10,938 EUR
Retailer 4€14,502 EUR
Do Amore Diamonds€17,195 EUR

23 data points across 12 retailers

10 retailers€2,491 EUR to €17,195 EUR

A
Cheapest Retailer
-
€2,491 EUR
$2,783 USD
A
Retailer 2
-
€2,718 EUR
$3,037 USD
View
A
Retailer 3
-
€3,043 EUR
$3,400 USD
View
A
Retailer 4
-
€3,102 EUR
$3,466 USD
View
A
Retailer 5
-
€3,997 EUR
$4,466 USD
View
B+
Retailer 6
-
€4,165 EUR
$4,653 USD
View
B+
Retailer 7
-
€4,509 EUR
$5,037 USD
View
B
Retailer 8
-
€8,153 EUR
£7,172 GBP
View
B+
Retailer 9
-
€10,938 EUR
$12,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-E718634AA · Oct 31
€17,195 EUR
$19,210 USD
View
9 more retailers have this diamond
Prices start from €2,491 EURSave up to €14,704 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
3.64ct Heart
€2,491 EUR