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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 $3,965 CAD
$2,833 USD
As of October 30, 2026
Save $23,397 CAD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $27,362 CAD at Do Amore Diamonds · As of October 29, 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 29, 2026, with prices from $3,965 to $27,362, a $23,397 spread on the same certified stone. Do Amore Diamonds lists it at $27,362. 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
Color
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+
Exceptional
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: $27,362 CAD|Low: $3,965 CAD|High: $30,623 CAD|Avg: $12,334 CAD|-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 2$3,965 CAD
Retailer 14$4,328 CAD
Retailer 10$4,518 CAD
Retailer 12$4,836 CAD
Retailer 15$5,022 CAD
Retailer 4$5,232 CAD
Retailer 13$6,363 CAD
Retailer 11$6,629 CAD
Retailer 9$7,174 CAD
Retailer 5$10,042 CAD
Retailer 8$12,976 CAD
Retailer 7$21,519 CAD
Retailer 3$24,885 CAD
Retailer 6$26,083 CAD
Do Amore Diamonds$27,362 CAD

26 data points across 15 retailers

12 retailers$3,965 CAD to $27,362 CAD

A+
Cheapest Retailer
-
$3,965 CAD
$2,833 USD
A
Retailer 2
-
$4,328 CAD
$3,092 USD
View
A
Retailer 3
-
$4,518 CAD
$3,228 USD
View
A
Retailer 4
-
$4,836 CAD
$3,455 USD
View
A
Retailer 5
-
$5,022 CAD
$3,588 USD
View
A
Retailer 6
-
$5,232 CAD
$3,738 USD
View
Final sale: no returns
A
Retailer 7
-
$6,363 CAD
$4,546 USD
View
B+
Retailer 8
-
$6,629 CAD
$4,736 USD
View
B+
Retailer 9
-
$7,174 CAD
$5,126 USD
View
B
Retailer 10
-
$12,976 CAD
£7,300 GBP
View
B
Retailer 11
-
$24,885 CAD
$17,780 USD
View
Most Expensive
B
Do Amore Diamonds
27-FDEF14AD4 · Oct 29
$27,362 CAD
$19,550 USD
View
11 more retailers have this diamond
Prices start from $3,965 CADSave up to $23,397 CAD

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
$3,965 CAD