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Heart|Lab Grown|IGI

1.28ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681475

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681475

Diamond specifications and retailer prices

From $443 CAD
$317 USD
As of October 30, 2026
Save $3,482 CAD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,925 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681475 or 818681475. Listed at 11 retailers as of October 30, 2026, with prices from $443 to $3,925, a $3,482 spread on the same certified stone. Do Amore Diamonds lists it at $3,925. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681475
Dimensions6.51 × 7.59 × 4.46 mm
L/W Ratio1.17
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
6.51 mm7.59 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681475
Side View
Table 58.0%Crown 32.2°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 58.8%

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: $3,925 CAD|Low: $443 CAD|High: $5,769 CAD|Avg: $2,050 CAD|-32.0%
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
October 30, 2026
Retailer 6$443 CAD
Retailer 10$514 CAD
Retailer 11$810 CAD
Retailer 8$890 CAD
Retailer 3$972 CAD
Retailer 12$1,360 CAD
Retailer 7$1,609 CAD
Retailer 9$1,947 CAD
Retailer 5$2,379 CAD
Retailer 2$3,674 CAD
Retailer 4$3,685 CAD
Do Amore Diamonds$3,925 CAD

22 data points across 12 retailers

11 retailers$443 CAD to $3,925 CAD

A
Cheapest Retailer
-
$443 CAD
$317 USD
A
Retailer 2
-
$514 CAD
$368 USD
View
A
Retailer 3
-
$810 CAD
$580 USD
View
A
Retailer 4
-
$890 CAD
$637 USD
View
A
Retailer 5
-
$972 CAD
$696 USD
View
B+
Retailer 6
-
$1,360 CAD
A$1,498 AUD
View
B+
Retailer 7
-
$1,609 CAD
$1,152 USD
View
B+
Retailer 8
-
$1,947 CAD
$1,394 USD
View
B
Retailer 9
-
$2,379 CAD
£1,341 GBP
View
B
Retailer 10
-
$3,674 CAD
$2,630 USD
View
Most Expensive
B
Do Amore Diamonds
27-396AFF3E3 · Oct 31
$3,925 CAD
$2,810 USD
View
10 more retailers have this diamond
Prices start from $443 CADSave up to $3,482 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
1.28ct Heart
$443 CAD