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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 $4,033 AUD
$2,833 USD
As of October 30, 2026
Save $23,798 AUD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $27,831 AUD 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 $4,033 to $27,831, a $23,798 spread on the same certified stone. Do Amore Diamonds lists it at $27,831. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $27,831 AUD|Low: $4,033 AUD|High: $31,148 AUD|Avg: $12,215 AUD|-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$4,033 AUD
Retailer 15$4,402 AUD
Retailer 11$4,595 AUD
Retailer 13$4,919 AUD
Retailer 3$5,108 AUD
Retailer 4$5,321 AUD
Retailer 14$6,472 AUD
Retailer 12$6,742 AUD
Retailer 10$7,297 AUD
Retailer 5$10,214 AUD
Retailer 9$13,198 AUD
Retailer 2$17,724 AUD
Retailer 7$21,888 AUD
Retailer 6$26,530 AUD
Do Amore Diamonds$27,831 AUD

26 data points across 15 retailers

12 retailers$4,033 AUD to $27,831 AUD

A
Cheapest Retailer
-
$4,033 AUD
$2,833 USD
A
Retailer 2
-
$4,402 AUD
$3,092 USD
View
A
Retailer 3
-
$4,595 AUD
$3,228 USD
View
A
Retailer 4
-
$4,919 AUD
$3,455 USD
View
A
Retailer 5
-
$5,108 AUD
$3,588 USD
View
A
Retailer 6
-
$5,321 AUD
$3,738 USD
View
Final sale: no returns
A
Retailer 7
-
$6,472 AUD
$4,546 USD
View
B+
Retailer 8
-
$6,742 AUD
$4,736 USD
View
B+
Retailer 9
-
$7,297 AUD
$5,126 USD
View
B
Retailer 10
-
$13,198 AUD
£7,300 GBP
View
B+
Retailer 11
-
$17,724 AUD
$12,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-FDEF14AD4 · Oct 31
$27,831 AUD
$19,550 USD
View
11 more retailers have this diamond
Prices start from $4,033 AUDSave up to $23,798 AUD

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
$4,033 AUD