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Heart|Lab Grown|IGI

4.00ct F FL Heart Lab Grown Diamond

EX • F/FL • IGI LG816611038

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816611038

Diamond specifications and retailer prices

From $4,905 NZD
$2,760 USD
As of October 30, 2026
Save $28,846 NZD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $33,751 NZD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 4ct lab-grown heart diamond

This 4ct 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 LG816611038 or 816611038. Listed at 11 retailers as of October 30, 2026, with prices from $4,905 to $33,751, a $28,846 spread on the same certified stone. Do Amore Diamonds lists it at $33,751. 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

4.00
Carat
F
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816611038
Dimensions9.96 × 10.54 × 6.55 mm
L/W Ratio1.06
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
9.96 mm10.54 mm4.00 ctF / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816611038
Side View
Table 60.0%Crown 36.1°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 62.1%

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: $33,751 NZD|Low: $4,905 NZD|High: $48,822 NZD|Avg: $12,940 NZD|-30.9%
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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 3$4,905 NZD
Retailer 8$5,140 NZD
Retailer 10$5,231 NZD
Retailer 15$5,337 NZD
Retailer 16$5,931 NZD
Retailer 13$7,849 NZD
Retailer 11$8,033 NZD
Retailer 14$8,048 NZD
Retailer 7$8,648 NZD
Retailer 17$8,855 NZD
Retailer 4$9,809 NZD
Retailer 5$11,637 NZD
Retailer 2$15,920 NZD
Retailer 12$17,098 NZD
Retailer 6$20,357 NZD
Retailer 9$26,294 NZD
Do Amore Diamonds$33,751 NZD

24 data points across 17 retailers

11 retailers$4,905 NZD to $33,751 NZD

A
Cheapest Retailer
-
$4,905 NZD
$2,760 USD
A
Retailer 2
-
$5,231 NZD
£2,318 GBP
View
A
Retailer 3
-
$5,337 NZD
$3,003 USD
View
A
Retailer 4
-
$5,931 NZD
$3,337 USD
View
A
Retailer 5
-
$7,849 NZD
$4,416 USD
View
A
Retailer 6
-
$8,033 NZD
$4,520 USD
View
A
Retailer 7
-
$8,048 NZD
$4,528 USD
View
A
Retailer 8
-
$8,855 NZD
$4,982 USD
View
B+
Retailer 9
-
$15,920 NZD
£7,053 GBP
View
B+
Retailer 10
-
$17,098 NZD
$9,620 USD
View
Most Expensive
B+
Do Amore Diamonds
27-179D74ADA · Nov 1
$33,751 NZD
$18,990 USD
View
10 more retailers have this diamond
Prices start from $4,905 NZDSave up to $28,846 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
4.00ct Heart
$4,905 NZD