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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 $2,868 USD
As of October 30, 2026
Save $11,665 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,533 USD 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 $2,868 to $14,533, a $11,665 spread on the same certified stone. With Clarity lists it at $14,533. 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
Color
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

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 30
Current: $3,661 USD|Low: $2,868 USD|High: $14,533 USD|Avg: $6,148 USD|-0.6%
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$2,868 USD
Retailer 2$3,120 USD
Retailer 7$3,326 USD
Retailer 17$3,339 USD
Retailer 3$3,485 USD
Retailer 1$3,661 USD
Retailer 9$3,802 USD
Retailer 4$3,820 USD
Retailer 14$4,260 USD
Retailer 11$4,495 USD
Retailer 6$4,572 USD
Retailer 18$5,173 USD
Retailer 13$6,276 USD
Retailer 16$7,725 USD
Retailer 12$8,432 USD
Retailer 15$8,648 USD
Retailer 8$11,590 USD
Retailer 5$13,267 USD
With Clarity$14,533 USD

15 data points across 19 retailers

19 retailers$2,868 USD to $14,533 USD

A
Cheapest Retailer
-
$2,868 USD
A
Retailer 2
-
$3,120 USD
View
A
Retailer 3
-
$3,326 USD
View
A
Retailer 4
-
$3,339 USD
View
A
Retailer 5
-
$3,485 USD
View
A
Retailer 6
-
$3,661 USD
£2,883 GBP
View
A
Retailer 7
-
$3,802 USD
View
Final sale: no returns
A
Retailer 8
-
$3,820 USD
View
B+
Retailer 9
-
$4,260 USD
View
B+
Retailer 10
-
$4,495 USD
£3,539 GBP
View
B+
Retailer 11
-
$4,572 USD
View
B+
Retailer 12
-
$5,173 USD
View
B+
Retailer 13
-
$6,276 USD
€5,977 EUR
View
B+
Retailer 14
-
$7,725 USD
ZAR 124,793 ZAR
View
B+
Retailer 15
-
$8,432 USD
£6,639 GBP
View
B+
Retailer 16
-
$8,648 USD
View
B
Retailer 17
-
$11,590 USD
View
B
Retailer 18
-
$13,267 USD
SGD 17,928 SGD
View
Most Expensive
B
With Clarity
840634502 · Nov 2
$14,533 USD
View
18 more retailers have this diamond
Prices start from $2,868 USDSave up to $11,665 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
3.55ct Heart
$2,868 USD