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Heart|Lab Grown|IGI

3.90ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG784645685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG784645685

Diamond specifications and retailer prices

From $5,266 NZD
$2,968 USD
As of October 30, 2026
Save $31,072 NZD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $36,338 NZD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.9ct lab-grown heart diamond

This 3.9ct 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 LG784645685 or 784645685. Listed at 13 retailers as of October 30, 2026, with prices from $5,266 to $36,338, a $31,072 spread on the same certified stone. Do Amore Diamonds lists it at $36,338. 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

3.90
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645685
Dimensions9.89 × 10.57 × 6.43 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
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
9.89 mm10.57 mm3.90 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645685
Side View
Table 56.0%Crown 35.8°Girdle: STK-VTKPavilion 39.5°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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: $36,338 NZD|Low: $5,266 NZD|High: $40,969 NZD|Avg: $13,234 NZD|-11.3%
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
October 31, 2026
Retailer 9$5,266 NZD
Retailer 4$5,747 NZD
Retailer 12$5,990 NZD
Retailer 14$6,414 NZD
Retailer 7$6,955 NZD
Retailer 5$7,001 NZD
Retailer 3$8,453 NZD
Retailer 13$8,804 NZD
Retailer 11$9,524 NZD
Retailer 8$11,409 NZD
Retailer 6$13,434 NZD
Retailer 10$17,236 NZD
Retailer 2$23,208 NZD
Do Amore Diamonds$36,338 NZD

31 data points across 14 retailers

13 retailers$5,266 NZD to $36,338 NZD

A
Cheapest Retailer
-
$5,266 NZD
$2,968 USD
A
Retailer 2
-
$5,747 NZD
$3,239 USD
View
A
Retailer 3
-
$5,990 NZD
$3,376 USD
View
A
Retailer 4
-
$6,414 NZD
$3,615 USD
View
A
Retailer 5
-
$6,955 NZD
$3,920 USD
View
A
Retailer 6
-
$7,001 NZD
$3,946 USD
View
Final sale: no returns
A
Retailer 7
-
$8,453 NZD
$4,764 USD
View
B+
Retailer 8
-
$8,804 NZD
$4,962 USD
View
B+
Retailer 9
-
$9,524 NZD
$5,368 USD
View
B+
Retailer 10
-
$11,409 NZD
€6,124 EUR
View
B
Retailer 11
-
$17,236 NZD
£7,649 GBP
View
B
Retailer 12
-
$23,208 NZD
$13,080 USD
View
Most Expensive
B
Do Amore Diamonds
27-448375942 · Oct 30
$36,338 NZD
$20,480 USD
View
12 more retailers have this diamond
Prices start from $5,266 NZDSave up to $31,072 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
3.90ct Heart
$5,266 NZD