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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 $3,558 SGD
$2,783 USD
As of October 30, 2026
Save $21,000 SGD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,558 SGD at Do Amore Diamonds · As of October 29, 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 29, 2026, with prices from $3,558 to $24,558, a $21,000 spread on the same certified stone. Do Amore Diamonds lists it at $24,558. 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

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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: $24,558 SGD|Low: $3,558 SGD|High: $27,473 SGD|Avg: $11,822 SGD|-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 30, 2026
Retailer 5$3,558 SGD
Retailer 11$3,883 SGD
Retailer 9$4,347 SGD
Retailer 12$4,433 SGD
Retailer 10$5,709 SGD
Retailer 8$5,948 SGD
Retailer 7$6,439 SGD
Retailer 3$8,956 SGD
Retailer 6$11,644 SGD
Retailer 2$15,622 SGD
Retailer 4$20,713 SGD
Do Amore Diamonds$24,558 SGD

20 data points across 12 retailers

10 retailers$3,558 SGD to $24,558 SGD

A
Cheapest Retailer
-
$3,558 SGD
$2,783 USD
A
Retailer 2
-
$3,883 SGD
$3,037 USD
View
A
Retailer 3
-
$4,347 SGD
$3,400 USD
View
A
Retailer 4
-
$4,433 SGD
$3,468 USD
View
A
Retailer 5
-
$5,709 SGD
$4,466 USD
View
B+
Retailer 6
-
$5,948 SGD
$4,653 USD
View
B+
Retailer 7
-
$6,439 SGD
$5,037 USD
View
B
Retailer 8
-
$11,644 SGD
£7,172 GBP
View
B+
Retailer 9
-
$15,622 SGD
$12,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-E718634AA · Oct 29
$24,558 SGD
$19,210 USD
View
9 more retailers have this diamond
Prices start from $3,558 SGDSave up to $21,000 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
3.64ct Heart
$3,558 SGD