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Heart|Lab Grown|IGI

3.90ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG784645685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG784645685

Diamond specifications and retailer prices

From €2,657 EUR
$2,968 USD
As of October 30, 2026
Save €15,621 EUR (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €18,278 EUR at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 3.9ct lab-grown heart diamond

This 3.9ct 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 LG784645685 or 784645685. Listed at 13 retailers as of October 30, 2026, with prices from €2,657 to €18,278, a €15,621 spread on the same certified stone. Do Amore Diamonds lists it at €18,278. 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

3.90
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645685
Dimensions9.89 × 10.57 × 6.43 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
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
9.89 mm10.57 mm3.90 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645685
Side View
Table 56.0%Crown 35.8°Girdle: STK-VTKPavilion 39.5°Culet: NoneDepth 60.8%

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: €18,278 EUR|Low: €2,657 EUR|High: €20,668 EUR|Avg: €6,653 EUR|-11.6%
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
Retailer 13
Retailer 14
November 1, 2026
Retailer 12€2,657 EUR
Retailer 4€2,899 EUR
Retailer 7€3,014 EUR
Retailer 8€3,222 EUR
Retailer 10€3,509 EUR
Retailer 5€3,532 EUR
Retailer 2€4,251 EUR
Retailer 3€4,441 EUR
Retailer 14€4,805 EUR
Retailer 11€5,756 EUR
Retailer 6€6,777 EUR
Retailer 13€8,695 EUR
Retailer 9€11,708 EUR
Do Amore Diamonds€18,278 EUR

32 data points across 14 retailers

13 retailers€2,657 EUR to €18,278 EUR

A
Cheapest Retailer
-
€2,657 EUR
$2,968 USD
A
Retailer 2
-
€2,899 EUR
$3,239 USD
View
A
Retailer 3
-
€3,014 EUR
$3,367 USD
View
A
Retailer 4
-
€3,222 EUR
$3,600 USD
View
A
Retailer 5
-
€3,509 EUR
$3,920 USD
View
A
Retailer 6
-
€3,532 EUR
$3,946 USD
View
Final sale: no returns
A
Retailer 7
-
€4,251 EUR
$4,749 USD
View
B+
Retailer 8
-
€4,441 EUR
$4,962 USD
View
B+
Retailer 9
-
€4,805 EUR
$5,368 USD
View
B+
Retailer 10
-
€5,756 EUR
View
B
Retailer 11
-
€8,695 EUR
£7,649 GBP
View
B
Retailer 12
-
€11,708 EUR
$13,080 USD
View
Most Expensive
B
Do Amore Diamonds
27-448375942 · Nov 1
€18,278 EUR
$20,420 USD
View
12 more retailers have this diamond
Prices start from €2,657 EURSave up to €15,621 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
3.90ct Heart
€2,657 EUR