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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 $2,968 USD
As of October 30, 2026
Save $17,512 USD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,480 USD at Do Amore Diamonds · As of October 30, 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 $2,968 to $20,480, a $17,512 spread on the same certified stone. Do Amore Diamonds lists it at $20,480. 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
Color
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: $20,480 USD|Low: $2,968 USD|High: $23,090 USD|Avg: $7,671 USD|-11.3%
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
October 30, 2026
Retailer 7$2,968 USD
Retailer 3$3,239 USD
Retailer 11$3,376 USD
Retailer 13$3,615 USD
Retailer 4$3,923 USD
Retailer 5$3,946 USD
Retailer 14$4,764 USD
Retailer 12$4,962 USD
Retailer 10$5,368 USD
Retailer 8$6,495 USD
Retailer 6$7,571 USD
Retailer 9$9,714 USD
Retailer 2$13,130 USD
Do Amore Diamonds$20,480 USD

30 data points across 14 retailers

13 retailers$2,968 USD to $20,480 USD

A
Cheapest Retailer
-
$2,968 USD
A
Retailer 2
-
$3,239 USD
View
A
Retailer 3
-
$3,376 USD
View
A
Retailer 4
-
$3,615 USD
View
A
Retailer 5
-
$3,923 USD
View
A
Retailer 6
-
$3,946 USD
View
Final sale: no returns
A
Retailer 7
-
$4,764 USD
View
B+
Retailer 8
-
$4,962 USD
View
B+
Retailer 9
-
$5,368 USD
View
B+
Retailer 10
-
$6,495 USD
€6,186 EUR
View
B
Retailer 11
-
$9,714 USD
£7,649 GBP
View
B
Retailer 12
-
$13,130 USD
View
Most Expensive
B
Do Amore Diamonds
27-448375942 · Oct 30
$20,480 USD
View
12 more retailers have this diamond
Prices start from $2,968 USDSave up to $17,512 USD

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
$2,968 USD