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Heart|Lab Grown|IGI

4.51ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG794623406

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG794623406

Diamond specifications and retailer prices

From $6,255 CAD
$4,478 USD
As of October 30, 2026
Save $36,783 CAD (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $43,038 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG794623406 or 794623406. Listed at 9 retailers as of October 30, 2026, with prices from $6,255 to $43,038, a $36,783 spread on the same certified stone. Do Amore Diamonds lists it at $43,038. 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

4.51
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794623406
Dimensions11.84 × 9.95 × 6.57 mm
L/W Ratio1.19
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
11.84 mm9.95 mm4.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794623406
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 55.5%

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: $43,038 CAD|Low: $6,255 CAD|High: $55,694 CAD|Avg: $22,609 CAD|-22.7%
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
October 30, 2026
Retailer 12$6,255 CAD
Retailer 10$6,556 CAD
Retailer 9$9,355 CAD
Retailer 7$9,359 CAD
Retailer 8$9,509 CAD
Retailer 11$11,224 CAD
Retailer 6$16,385 CAD
Retailer 4$18,512 CAD
Retailer 2$20,269 CAD
Retailer 13$23,356 CAD
Retailer 3$32,637 CAD
Do Amore Diamonds$43,038 CAD
Retailer 5$54,452 CAD

21 data points across 13 retailers

9 retailers$6,255 CAD to $43,038 CAD

A
Cheapest Retailer
-
$6,255 CAD
$4,478 USD
A
Retailer 2
-
$6,556 CAD
$4,693 USD
View
A
Retailer 3
-
$9,355 CAD
$6,697 USD
View
A
Retailer 4
-
$9,359 CAD
$6,700 USD
View
A
Retailer 5
-
$9,509 CAD
$6,807 USD
View
A
Retailer 6
-
$11,224 CAD
$8,035 USD
View
B+
Retailer 7
-
$16,385 CAD
£9,236 GBP
View
B+
Retailer 8
-
$20,269 CAD
$14,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-84D286800 · Oct 31
$43,038 CAD
$30,810 USD
View
8 more retailers have this diamond
Prices start from $6,255 CADSave up to $36,783 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
4.51ct Heart
$6,255 CAD