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Heart|Lab Grown|IGI

1.55ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG818653714

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818653714

Diamond specifications and retailer prices

From $427 CAD
$306 USD
As of October 30, 2026
Save $3,526 CAD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,953 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818653714 or 818653714. Listed at 19 retailers as of October 30, 2026, with prices from $427 to $3,953, a $3,526 spread on the same certified stone. Brilliant Earth lists it at $3,953. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653714
Dimensions7.02 × 7.81 × 4.73 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
7.02 mm7.81 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653714
Side View
Table 60.0%Crown 36.9°Girdle: STK-VTKPavilion 39.3°Culet: NoneDepth 60.6%

Caratlytics Score

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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: $3,953 CAD|Low: $427 CAD|High: $4,526 CAD|Avg: $1,368 CAD|-12.7%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 6$427 CAD
Retailer 4$479 CAD
Retailer 3$531 CAD
Retailer 10$531 CAD
Retailer 12$563 CAD
Retailer 16$747 CAD
Retailer 8$865 CAD
Retailer 15$912 CAD
Retailer 2$944 CAD
Retailer 14$1,238 CAD
Retailer 17$1,375 CAD
Retailer 5$1,479 CAD
Retailer 11$1,707 CAD
Retailer 19$1,745 CAD
Retailer 9$1,762 CAD
Retailer 7$1,772 CAD
Retailer 18$1,877 CAD
Retailer 13$2,138 CAD
Brilliant Earth$3,953 CAD

31 data points across 19 retailers

19 retailers$427 CAD to $3,953 CAD

A
Cheapest Retailer
-
$427 CAD
$306 USD
A
Retailer 2
-
$479 CAD
$343 USD
View
Final sale: no returns
A
Retailer 3
-
$531 CAD
$380 USD
View
A
Retailer 4
-
$531 CAD
$380 USD
View
A
Retailer 5
-
$563 CAD
£317 GBP
View
A
Retailer 6
-
$747 CAD
$535 USD
View
A
Retailer 7
-
$865 CAD
$619 USD
View
A
Retailer 8
-
$912 CAD
ZAR 10,548 ZAR
View
A
Retailer 9
-
$944 CAD
£532 GBP
View
A
Retailer 10
-
$1,238 CAD
A$1,363 AUD
View
A
Retailer 11
-
$1,375 CAD
$984 USD
View
A
Retailer 12
-
$1,479 CAD
$1,059 USD
View
B+
Retailer 13
-
$1,707 CAD
$1,222 USD
View
B+
Retailer 14
-
$1,745 CAD
$1,249 USD
View
B+
Retailer 15
-
$1,762 CAD
SGD 1,705 SGD
View
B+
Retailer 16
-
$1,772 CAD
$1,268 USD
View
B+
Retailer 17
-
$1,877 CAD
$1,344 USD
View
B+
Retailer 18
-
$2,138 CAD
£1,205 GBP
View
Most Expensive
B
Brilliant Earth
21603033A · Oct 30
$3,953 CAD
$2,830 USD
View
18 more retailers have this diamond
Prices start from $427 CADSave up to $3,526 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
1.55ct Heart
$427 CAD