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Heart|Lab Grown|IGI

3.71ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660377

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660377

Diamond specifications and retailer prices

From $5,027 NZD
$2,833 USD
As of October 30, 2026
Save $29,661 NZD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $34,688 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.71ct lab-grown heart diamond

This 3.71ct 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 LG804660377 or 804660377. Listed at 12 retailers as of October 30, 2026, with prices from $5,027 to $34,688, a $29,661 spread on the same certified stone. Do Amore Diamonds lists it at $34,688. 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

3.71
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660377
Dimensions9.53 × 10.62 × 6.35 mm
L/W Ratio1.11
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
9.53 mm10.62 mm3.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660377
Side View
Table 61.0%Crown 34.2°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 59.8%

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: $34,688 NZD|Low: $5,027 NZD|High: $38,822 NZD|Avg: $15,224 NZD|-10.6%
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
October 30, 2026
Retailer 8$5,027 NZD
Retailer 15$5,486 NZD
Retailer 11$5,727 NZD
Retailer 13$6,130 NZD
Retailer 3$6,366 NZD
Retailer 4$6,632 NZD
Retailer 14$8,066 NZD
Retailer 12$8,403 NZD
Retailer 10$9,095 NZD
Retailer 5$12,730 NZD
Retailer 9$16,450 NZD
Retailer 2$22,090 NZD
Retailer 7$27,280 NZD
Retailer 6$33,066 NZD
Do Amore Diamonds$34,688 NZD

26 data points across 15 retailers

12 retailers$5,027 NZD to $34,688 NZD

A
Cheapest Retailer
-
$5,027 NZD
$2,833 USD
A
Retailer 2
-
$5,486 NZD
$3,092 USD
View
A
Retailer 3
-
$5,727 NZD
$3,228 USD
View
A
Retailer 4
-
$6,130 NZD
$3,455 USD
View
A
Retailer 5
-
$6,366 NZD
$3,588 USD
View
A
Retailer 6
-
$6,632 NZD
$3,738 USD
View
Final sale: no returns
A
Retailer 7
-
$8,066 NZD
$4,546 USD
View
B+
Retailer 8
-
$8,403 NZD
$4,736 USD
View
B+
Retailer 9
-
$9,095 NZD
$5,126 USD
View
B
Retailer 10
-
$16,450 NZD
£7,300 GBP
View
B+
Retailer 11
-
$22,090 NZD
$12,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-FDEF14AD4 · Oct 31
$34,688 NZD
$19,550 USD
View
11 more retailers have this diamond
Prices start from $5,027 NZDSave up to $29,661 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
3.71ct Heart
$5,027 NZD