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Heart|Lab Grown|IGI

1.23ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG821616173

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821616173

Diamond specifications and retailer prices

From $481 CAD
As of November 3, 2026
Save $1,671 CAD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,151 CAD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821616173 or 821616173. Listed at 19 retailers as of November 1, 2026, with prices from $481 to $2,151, a $1,671 spread on the same certified stone. Reve Diamonds lists it at $2,151. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821616173
Dimensions7.47 × 6.81 × 4.24 mm
L/W Ratio1.10
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
7.47 mm6.81 mm1.23 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821616173
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 56.8%

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: Nov 3
Current: $941 CAD|Low: $414 CAD|High: $2,166 CAD|Avg: $1,094 CAD|+2.1%
Retailer 1
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
November 4, 2026
Retailer 16$430 CAD
Retailer 7$481 CAD
Retailer 3$534 CAD
Retailer 5$534 CAD
Retailer 15$720 CAD
Retailer 13$755 CAD
Retailer 11$866 CAD
Retailer 9$921 CAD
Retailer 1$941 CAD
Retailer 2$1,133 CAD
Retailer 12$1,302 CAD
Retailer 14$1,642 CAD
Retailer 6$1,713 CAD
Retailer 4$1,718 CAD
Retailer 8$1,782 CAD
Retailer 10$2,141 CAD

40 data points across 16 retailers

19 retailers$481 CAD to $2,151 CAD

Retailer 1
-
$430 CAD
Price last confirmed 12 days ago
A
Retailer 2
-
$481 CAD
View
Final sale: no returns
Retailer 3
-
$500 CAD
View
Price last confirmed 36 days ago
Retailer 4
-
$534 CAD
View
Price last confirmed 10 days ago
Retailer 5
-
$534 CAD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$590 CAD
View
A
Retailer 7
-
$720 CAD
View
A
Retailer 8
-
$755 CAD
View
A
Retailer 9
-
$866 CAD
View
A
Retailer 10
-
$921 CAD
View
A
Retailer 11
-
$941 CAD
View
B+
Retailer 12
-
$1,133 CAD
View
B+
Retailer 13
-
$1,302 CAD
View
B
Retailer 14
-
$1,642 CAD
View
B
Retailer 15
-
$1,713 CAD
View
Retailer 16
-
$1,718 CAD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$1,782 CAD
View
B
Retailer 18
-
$2,141 CAD
View
Most Expensive
B
Reve Diamonds
7DB8BD3DA · Nov 1
$2,151 CAD
$1,539 USD
View
18 more retailers have this diamond
Prices start from $481 CADSave up to $1,671 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
1.23ct Heart
$481 CAD