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Heart|Lab Grown|IGI

3.55ct F FL Heart Lab Grown Diamond

ID • F/FL • IGI LG840634502

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634502

Diamond specifications and retailer prices

From $3,666 SGD
$2,868 USD
As of October 30, 2026
Save $14,913 SGD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,579 SGD at With Clarity · As of November 2, 2026
View at With Clarity

About this 3.55ct lab-grown heart diamond

This 3.55ct lab-grown heart sits in the three to five carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634502 or 840634502. Listed at 19 retailers as of October 30, 2026, with prices from $3,666 to $18,579, a $14,913 spread on the same certified stone. With Clarity lists it at $18,579. 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

3.55
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634502
Dimensions9.36 × 10.20 × 6.22 mm
L/W Ratio1.09
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
9.36 mm10.20 mm3.55 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634502
Side View
Table 60.0%Crown 36.7°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 61.0%

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: $5,746 SGD|Low: $3,666 SGD|High: $18,579 SGD|Avg: $7,860 SGD|-2.1%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
With Clarity
November 2, 2026
Retailer 10$3,666 SGD
Retailer 2$3,989 SGD
Retailer 7$4,252 SGD
Retailer 17$4,269 SGD
Retailer 3$4,455 SGD
Retailer 12$4,681 SGD
Retailer 9$4,860 SGD
Retailer 4$4,883 SGD
Retailer 14$5,446 SGD
Retailer 1$5,746 SGD
Retailer 6$5,845 SGD
Retailer 18$6,613 SGD
Retailer 13$8,023 SGD
Retailer 16$9,875 SGD
Retailer 11$10,779 SGD
Retailer 15$11,056 SGD
Retailer 8$14,817 SGD
Retailer 5$16,960 SGD
With Clarity$18,579 SGD

15 data points across 19 retailers

19 retailers$3,666 SGD to $18,579 SGD

A
Cheapest Retailer
-
$3,666 SGD
$2,868 USD
A
Retailer 2
-
$3,989 SGD
$3,120 USD
View
A
Retailer 3
-
$4,252 SGD
$3,326 USD
View
A
Retailer 4
-
$4,269 SGD
$3,339 USD
View
A
Retailer 5
-
$4,455 SGD
$3,485 USD
View
A
Retailer 6
-
$4,681 SGD
£2,883 GBP
View
A
Retailer 7
-
$4,860 SGD
$3,802 USD
View
Final sale: no returns
A
Retailer 8
-
$4,883 SGD
$3,820 USD
View
B+
Retailer 9
-
$5,446 SGD
$4,260 USD
View
B+
Retailer 10
-
$5,746 SGD
£3,539 GBP
View
B+
Retailer 11
-
$5,845 SGD
$4,572 USD
View
B+
Retailer 12
-
$6,613 SGD
$5,173 USD
View
B+
Retailer 13
-
$8,023 SGD
€5,977 EUR
View
B+
Retailer 14
-
$9,875 SGD
ZAR 124,793 ZAR
View
B+
Retailer 15
-
$10,779 SGD
£6,639 GBP
View
B+
Retailer 16
-
$11,056 SGD
$8,648 USD
View
B
Retailer 17
-
$14,817 SGD
$11,590 USD
View
B
Retailer 18
-
$16,960 SGD
View
Most Expensive
B
With Clarity
840634502 · Nov 2
$18,579 SGD
$14,533 USD
View
18 more retailers have this diamond
Prices start from $3,666 SGDSave up to $14,913 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
3.55ct Heart
$3,666 SGD