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Heart|Lab Grown|IGI

3.99ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663142

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663142

Diamond specifications and retailer prices

From $6,614 CAD
$4,735 USD
As of October 29, 2026
Save $20,108 CAD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $26,723 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.99ct lab-grown heart diamond

This 3.99ct 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 LG846663142 or 846663142. Listed at 9 retailers as of October 29, 2026, with prices from $6,614 to $26,723, a $20,108 spread on the same certified stone. Brilliant Earth lists it at $26,723. 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

3.99
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663142
Dimensions9.88 × 10.61 × 6.39 mm
L/W Ratio1.07
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
9.88 mm10.61 mm3.99 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663142
Side View
Table 59.0%Crown 36.9°Girdle: THK-VTKPavilion 39.7°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $7,806 CAD|Low: $6,614 CAD|High: $14,084 CAD|Avg: $10,211 CAD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7$6,614 CAD
Retailer 1$7,806 CAD
Retailer 6$8,101 CAD
Retailer 5$8,675 CAD
Retailer 4$10,129 CAD
Retailer 2$12,761 CAD
Retailer 8$13,820 CAD
Retailer 3$14,084 CAD

6 data points across 8 retailers

9 retailers$6,614 CAD to $26,723 CAD

A
Cheapest Retailer
-
$6,614 CAD
$4,735 USD
B+
Retailer 2
-
$7,806 CAD
£4,400 GBP
View
B+
Retailer 3
-
$8,101 CAD
$5,799 USD
View
B+
Retailer 4
-
$8,675 CAD
$6,210 USD
View
B+
Retailer 5
-
$10,129 CAD
$7,251 USD
View
B+
Retailer 6
-
$12,761 CAD
€8,700 EUR
View
B+
Retailer 7
-
$13,820 CAD
$9,893 USD
View
B
Retailer 8
-
$14,084 CAD
£7,939 GBP
View
Most Expensive
B
Brilliant Earth
22305682A · Oct 29
$26,723 CAD
$19,130 USD
View
8 more retailers have this diamond
Prices start from $6,614 CADSave up to $20,108 CAD

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
3.99ct Heart
$6,614 CAD