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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 $5,097 NZD
$2,868 USD
As of November 2, 2026
Save $20,732 NZD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,830 NZD 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 November 2, 2026, with prices from $5,097 to $25,830, a $20,732 spread on the same certified stone. With Clarity lists it at $25,830. 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

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: Nov 2
Current: $7,651 NZD|Low: $5,097 NZD|High: $25,830 NZD|Avg: $10,928 NZD|-9.9%
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$5,097 NZD
Retailer 2$5,545 NZD
Retailer 7$5,911 NZD
Retailer 17$5,934 NZD
Retailer 3$6,194 NZD
Retailer 12$6,507 NZD
Retailer 9$6,757 NZD
Retailer 4$6,789 NZD
Retailer 1$7,651 NZD
Retailer 13$7,988 NZD
Retailer 6$8,126 NZD
Retailer 18$9,194 NZD
Retailer 11$11,152 NZD
Retailer 16$13,729 NZD
Retailer 14$14,985 NZD
Retailer 15$15,370 NZD
Retailer 8$20,599 NZD
Retailer 5$23,579 NZD
With Clarity$25,830 NZD

15 data points across 19 retailers

19 retailers$5,097 NZD to $25,830 NZD

A
Cheapest Retailer
-
$5,097 NZD
$2,868 USD
A
Retailer 2
-
$5,545 NZD
$3,120 USD
View
A
Retailer 3
-
$5,911 NZD
$3,326 USD
View
A
Retailer 4
-
$5,934 NZD
$3,339 USD
View
A
Retailer 5
-
$6,194 NZD
$3,485 USD
View
A
Retailer 6
-
$6,507 NZD
£2,883 GBP
View
A
Retailer 7
-
$6,757 NZD
$3,802 USD
View
Final sale: no returns
A
Retailer 8
-
$6,789 NZD
$3,820 USD
View
B+
Retailer 9
-
$7,651 NZD
$4,305 USD
View
B+
Retailer 10
-
$7,988 NZD
£3,539 GBP
View
B+
Retailer 11
-
$8,126 NZD
$4,572 USD
View
B+
Retailer 12
-
$9,194 NZD
$5,173 USD
View
B+
Retailer 13
-
$11,152 NZD
€5,976 EUR
View
B+
Retailer 14
-
$13,729 NZD
ZAR 124,793 ZAR
View
B+
Retailer 15
-
$14,985 NZD
£6,639 GBP
View
B+
Retailer 16
-
$15,370 NZD
$8,648 USD
View
B
Retailer 17
-
$20,599 NZD
$11,590 USD
View
B
Retailer 18
-
$23,579 NZD
SGD 17,928 SGD
View
Most Expensive
B
With Clarity
840634502 · Nov 2
$25,830 NZD
$14,533 USD
View
18 more retailers have this diamond
Prices start from $5,097 NZDSave up to $20,732 NZD

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
$5,097 NZD