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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 $6,053 SGD
$4,735 USD
As of October 31, 2026
Save $18,403 SGD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $24,456 SGD 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 $6,053 to $24,456, a $18,403 spread on the same certified stone. Brilliant Earth lists it at $24,456. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $7,143 SGD|Low: $6,053 SGD|High: $12,890 SGD|Avg: $9,345 SGD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7$6,053 SGD
Retailer 1$7,143 SGD
Retailer 6$7,413 SGD
Retailer 5$7,939 SGD
Retailer 4$9,270 SGD
Retailer 2$11,678 SGD
Retailer 8$12,647 SGD
Retailer 3$12,890 SGD

6 data points across 8 retailers

9 retailers$6,053 SGD to $24,456 SGD

A
Cheapest Retailer
-
$6,053 SGD
$4,735 USD
B+
Retailer 2
-
$7,143 SGD
£4,400 GBP
View
B+
Retailer 3
-
$7,413 SGD
$5,799 USD
View
B+
Retailer 4
-
$7,939 SGD
$6,210 USD
View
B+
Retailer 5
-
$9,270 SGD
$7,251 USD
View
B+
Retailer 6
-
$11,678 SGD
€8,700 EUR
View
B+
Retailer 7
-
$12,647 SGD
$9,893 USD
View
B
Retailer 8
-
$12,890 SGD
£7,939 GBP
View
Most Expensive
B
Brilliant Earth
22305682A · Oct 29
$24,456 SGD
$19,130 USD
View
8 more retailers have this diamond
Prices start from $6,053 SGDSave up to $18,403 SGD

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
$6,053 SGD