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Heart|Lab Grown|IGI

3.21ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660159

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660159

Diamond specifications and retailer prices

From $2,971 CAD
$2,127 USD
As of October 30, 2026
Save $17,465 CAD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $20,437 CAD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 3.21ct lab-grown heart diamond

This 3.21ct 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 LG804660159 or 804660159. Listed at 12 retailers as of October 30, 2026, with prices from $2,971 to $20,437, a $17,465 spread on the same certified stone. Do Amore Diamonds lists it at $20,437. 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

3.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660159
Dimensions9.96 × 8.93 × 6.17 mm
L/W Ratio1.12
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 mm8.93 mm3.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660159
Side View
Table 61.0%Crown 36.6°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 61.9%

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: $20,437 CAD|Low: $2,971 CAD|High: $24,418 CAD|Avg: $9,101 CAD|-16.3%
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
Retailer 15
November 1, 2026
Retailer 11$2,971 CAD
Retailer 15$3,322 CAD
Retailer 8$3,495 CAD
Retailer 9$3,681 CAD
Retailer 10$3,854 CAD
Retailer 4$3,976 CAD
Retailer 2$5,229 CAD
Retailer 13$5,535 CAD
Retailer 14$5,553 CAD
Retailer 5$8,079 CAD
Retailer 12$10,526 CAD
Retailer 6$13,309 CAD
Retailer 7$17,729 CAD
Retailer 3$19,864 CAD
Do Amore Diamonds$20,437 CAD

29 data points across 15 retailers

12 retailers$2,971 CAD to $20,437 CAD

A
Cheapest Retailer
-
$2,971 CAD
$2,127 USD
A
Retailer 2
-
$3,322 CAD
$2,378 USD
View
A
Retailer 3
-
$3,495 CAD
$2,502 USD
View
A
Retailer 4
-
$3,681 CAD
$2,635 USD
View
A
Retailer 5
-
$3,854 CAD
$2,759 USD
View
A
Retailer 6
-
$3,976 CAD
$2,846 USD
View
Final sale: no returns
A
Retailer 7
-
$5,229 CAD
$3,743 USD
View
B+
Retailer 8
-
$5,535 CAD
$3,962 USD
View
A
Retailer 9
-
$5,553 CAD
$3,975 USD
View
B+
Retailer 10
-
$10,526 CAD
£5,933 GBP
View
B
Retailer 11
-
$19,864 CAD
$14,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-45FF374D3 · Nov 1
$20,437 CAD
$14,630 USD
View
11 more retailers have this diamond
Prices start from $2,971 CADSave up to $17,465 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
3.21ct Heart
$2,971 CAD